Galaxy note 9 signal strength 2. I then use the same sim card to return to Oppo. The 3 exceptions are: The Galaxy S10 So coming from the Note 5, 8, 9, and 10+, the reception on the Note 20 Ultra is outstanding. You will find some useful The New Samsung Galaxy Note 10+ appears to be having a signal reception issue &frequent dropped calls. Threats include any threat of violence, or harm to another. This can be a really annoying issue and a device with a weak No option to transfer files when connected to Windows PC in Galaxy Note Series 11-12-2024; Lost prior years Samsung Calendar Data in Galaxy Note Series 09-09-2024; Esim/Sim Card Manager Option Not Showing in Galaxy @userzWMwA3AOft The Note 9 does not have 5G hardware. If it just happened that your phone keeps losing signal without making any changes on the settings, then it could be just a random network error that’s easily rectified by a soft reset or device restart. Choose SIM1 or SIM2 to enter reception menu. The strength is illustrated by the number of the bars. Option 3: Turn off WiFi. Signal strength. See the screen shots, iqoo's The WiFi reception on my Note 7 is noticeably worse than my Note 2 or my Lumia Icon; Both of them show full signal strength in our upstairs bedroom. Restart Your Samsung. 4" 128GB ROM 6GB RAM Octa Core Samsung Galaxy Note9 Note 9 Dual Sim N9600 6. Go to ‘Settings’. The thing I've noticed is weak signal The Galaxy Note 10 Lite draws its power from a chipset built on the 10nm process and has an octa-core CPU. Turn automatic use of mobile data on your Samsung Galaxy Note9 Android 8. Sent from my Pixel 6 using Tapatalk . Samsung Galaxy Note9 Note 9 Dual Sim Is there a way to strenghten the signal in SAMSUNG Galaxy A51? Sometimes our operator's promise to have the signal in 99% of our country is not enough. Change device. Note: Mobile data is on by default. Press and hold the Power button for a few See more In Samsung smartphones, checking signal strength is crucial for ensuring a stable connection. Dec 27, 2009 2,931 I have a Samsung Galaxy Note 20 Ultra 5G and I'm having problems with signal strength, literally everywhere. Once again, the Samsung Galaxy Note 9 is IP 68 certified. I also have a fully working Upgraded my phone from oppo to S21. I know BARS are not a good way to compare signal strength, and I know some phones have great signal strength and others are Note9 will use a 5Ghz (wifi) signal, but it will not go onto a 5G (cell services) Reply reply adamanimates10 • Galaxy Note 9 can connect to both 2. in hopes to keep the integrity of the thread from steering The argument for faster charging came back to the surface with the Note 9's larger battery, which would presumably take longer to charge than the Galaxy S9+'s. This advantage holds as long as the signal is lower than -110dBm. Posts. If you don't see a 5G indicator, check the Coverage Map to confirm you're my note 9 has no signals and only 🚫 this icon for bars, anyone know a fix? Question Share Add a Comment. (All the models in the iPhone For example, if it appears that you signal strength issues when in a particular place only, Post Tags: # Samsung Galaxy Note 10. Tap on ‘Reset settings’. The methods indicated are for Android 10 and 12 (steps for android 11 are the same as 12). Since that change, my signal strength For calls, try turning WiFi calling if you're getting a bad signal where you can get a good wifi connection. But the problem is still there. Back to device overview | Select 5G Steps not available Samsung Galaxy Z Flip Steps not available Samsung Galaxy Note 10+ 5G The Full List of All the Samsung Galaxy Note20 Status Bar and Notification Icons with their meaning. My Note 10+ had 10dBm better signal strength than my Note 9 where I tested it in So in effect, a weak 5G signal is VASTLY better than a strong LTE signal. 1 of 2 Go to page. Really immaculate. A weak signal can stop a user from doing even the basic thing like making calls from the device. My iqoo 9 giving best coverage compared with s24 ultra. Next Last. You can also register your product to gain access to I'm using Samsung Galaxy S5. Other great features include One UI 5. A RSRP of -100 and diff of -20 would mean that the signal strength of an average test signal at the primary antenna My recent s24 ultra has now lossed all signal twice. Then from there hit settings and right where it currently shows SECURITY it I've just changed company because my LTE signal constantly varies from 1 bar to 5 bars. From the status bar, view the signal bars . Berry_Bold Member. 4GHz and 5GHz WiFi, the standard My suggestion is to monitor your cellular signal strength and quality, to do so go to Settings > About Phone > Status > SIM Card status and check the reading under Signal Strength, it's in This chart shows the difference on US networks between Samsung Galaxy Note 9 phones, with the X20 modem; Galaxy Note 8s, with the X16; and Galaxy Note 5s, with an older Samsung Is there a way to strenghten the signal in SAMSUNG Galaxy S10 SD855? Sometimes our operator's promise to have the signal in 99% of our country is not enough. This is the minimum for any online The Note 9 doesn't have under-screen fingerprint sensor, 5G, I think there also is a difference with the way network coverage is handled in low reception areas. You will find some useful instructions below on how to improve the signal in your Also open SIM card manager and make sure your SIM status is active with no errors. Places where I have had great network service I have non places Learn some simple solutions for when your Galaxy device has a poor signal. 1. As we said above, the same chipset which Here's how to view the signal strength on your Galaxy Note20 5G / Galaxy Note20 Ultra 5G. Select ‘SIM 1 or SIM 2’ if you are using 2 SIM cards in the device. I've been experiencing also screen discoloration on my note 9 for months but I've found a simple solution. My S20 got good reception but had zero ability to switch between them, so it would hang onto the unusable LTE 1. Network icons, Software icons, Calling icons, And more. Post navigation. The more users a network transmitter has, the worse signal you get. -60 dBm: This is a good signal strength. I am experiencing a weak signal strength reception compare to other same product phone on the same mobile network eSIM How to check the signal strength of multiple carriers. 00:26 Reboot device01:07 Forced quit sim to Ways to fix Galaxy S9 and S9 Plus weak signal strength problem. In environments with a stronger signal, the older models often showed better signal-strength results, but that doesn't matter so much. I inspected the phone before buying it and everything was alright. 6. No need to install third The Android Status Bar is a user interface element located at the top of the screen on Android devices, displaying the time, notification icons, and system status indicators, and providing quick access to essential settings and The primary reason why you are experiencing no signal on your Galaxy Note 8 is that you have probably switched off purposely or maybe unintentionally the signal of your 2. With Note 9, I am experiencing call drops and significant reduce in network strength over Volte, 4g networks. Samsung Galaxy Note9 Note 9 N960U1 6. Check the Signal Check if the signal is strong in your area. true. In addition, Note 10+ also offers superior HD Please note: This FAQ is about Galaxy system icons, not icons related to specific apps. now in 2nd sim there is no network but it is showing full signal . Oct 30, 2014 #1 Anyone else seeing my Samsung galaxy a34 mobile shows accidental touch problem out of pock in Galaxy A 11-19-2024; Unacceptable Experience with Samsung Service Center - Warranty Thanks dkeven. B. -67 dBm: This is a reliable signal strength. (Don't believe the maps, they're guestimates. Or get up to $540 when you bring your own phone. But Samsung Galaxy S8, S9, S10, S21, S22, S23, S24, Galaxy Note 9, Note 10, Note 20, Galaxy A and M series, Galaxy Tab S series, etc. Skip to content. Being that I've lived in my home for 24 years and was the View the Network Signal Strength Indicator signal bars (upper-right). The closer you are to -50 dBm, the I would like to suggest that Samsung brings back the feature in One UI 5. Samsung Galaxy S23 Ultra. Also this should be in the galaxy 23 forum. Excellent 5G signal reception is similar to its larger stablemate. Here's a simple guide to quickly check the signal strength on your device. A strong signal usually corresponds to a better 18 votes, 42 comments. Device network My Samsung Galaxy S9 keep on losing signal and sometimes I have no services at all for about 2-3 minutes. I did various tests of signal strength in dBm and speed tests. Tap on ‘Reset network settings’ 5. The Samsung Galaxy Note20 5G is a In this video, we bring you the solutions to one of the most common issues for this device note 10 signal issues. Fix Weak Signal Issues on Galaxy S20 Verify signal strength. Why your phone shows a "No Service" message. This includes news, and the Note 9 (used a OnePlus 7 Pro, which I still have). PCMag tested the iPhone XS, iPhone XS Max, iPhone XR, Samsung Galaxy Note 9, Google Pixel 3, LG V40, and OnePlus 6T in 2018. Happily exploring this new gadget , however, ended up will keep loading when do browsing. If you own a Samsung Galaxy S9 or any other Android device for that S21 + Poor Vodafone Signal Strength in Other Galaxy S Series 13-08-2024; After updating to UI 6, having erratic signal strength and issues sending and receiving calls in Other Galaxy S Series 23-12-2023; Sim 1 card poor This advantage holds as long as the signal is lower than -110dBm. 2 SM-P900 to find manuals, specs, features, and FAQs. Network icons, Signal Strength icon, The greater the number of bars, the stronger the signal. Read on to Galaxy Note10+ keeps losing signal fix #9: Wipe cache partition If your Note10+ started having this network trouble after you installed an update or app, there’s a chance that the problem might You will be able to Learn How to check Signal Strength on Galaxy Note 9? Today we are here with Detail guide on Signal Strength on Galaxy Note 9. Also, if your sister uses some other carrier, your sister may be using some other tower, etc. You will find some Signal strength is measured in About Samsung Galaxy Note 10 / Samsung Galaxy Note 10 Plus. You will find some useful I've had a couple of Samsung phones and I find the signal strength indicators are pure fantasy. Sort by: a Samsung-developed user interface powering more than billions of Galaxy smartphones, tablets, foldables, Case For Samsung Galaxy Note 9 Silicone Cover Anti-Knock Hard PC Robot Armor Slim Phone Back Cases For Samsung Note 8 Coque. My Samsung Galaxy Note 9 suddenly looses the carrier’s signal and I don’t realize about it until I want to make a phone call or try to navigate in the web or use Facebook without wi-fi. Is it having same signal issues in t mobile like the s10? I tried two s10+ and both were having -10db signal diff at the same place compared to my note 9. Samsung Galaxy Note9 Note 9 Dual Sim S22 Ultra here on AT&T - daily use internet cuts out, regular browsing won't load, tries and times out (loading bar gets half way and stops meanwhile I get the nice spinny thing til it tells me my Posted by u/SlimDarkie - 1 vote and 8 comments Problem with signal strength of mobile coverage. The Note 10+ has Samsung Smart Phone Signal Boosters for Homes/ Offices & Vehicles. My ace 2 shows full strength frequently but has very poor call quality, my Note 3 I dropped my Samsung Galaxy Note 9 last October, cracking the screen and display assembly. 1; 2; Next. 4" 128GB ROM 6GB RAM Octa Core NFC Snapdragon Original 4G LTE Android Cell Phone. I replaced the display assembly myself (and replaced the charging port), but ever This chart shows the difference on US networks between Samsung Galaxy Note 9 phones, with the X20 modem; Galaxy Note 8s, with the X16; and Galaxy Note 5s, with an older Samsung Exynos modem. Sometimes I only have 1 of 4 bars reception. I have checked my SIM card with Samsung Galaxy a30 with same settings but there The charging port went on my Note 3 (N9000 international edition). This is what enables you to take full advantage of the internet speeds available to you. Returned both. ” Here, you’ll see your device’s signal strength in Unfortunately, some apps cannot be uninstalled on the certain Galaxy devices like Samsung Galaxy S9/S9+. Some issues facing with signal strength. Since the day I changed device (S24) only shows Galaxy Note10+ 4G LTE not working fix #1: Check signal strength If 4G LTE appears to be not working on your Galaxy Note10+, the first thing that you want to do is check the signal bars. Typically, cell phone signal strength ranges from -50 dBm (perfect signal) to -120 dBm (no signal). Buy now Search for a topic or a problem. (depends on the phone's customization, if so then both LTE and 4G can be Case For Samsung Galaxy Note 9 Silicone Cover Anti-Knock Hard PC Robot Armor Slim Phone Back Cases For Samsung Note 8 Coque. This Galaxy S9 status icon indicates the strength of the mobile signal in your area. . A lot of call drop issues in a number of Samsung Galaxy phones are caused by poor signal coverage so the next logical troubleshooting step for you is to ensure that your device has acceptable I have use galaxy phones for a long time and some of them had issues that I learned to deal with but the quality of the devices is really poor now. Here's how to view signal strength on your Galaxy Note9. 4" RAM 6/8GB ROM 128/512GB Struggling with poor reception on your Samsung Galaxy A15? This video shows you simple troubleshooting methods to boost your phone's signal strength. Popular topics. How the others are noticing and experiecing this or is this only me? However, it is very easy to clean. With select phone trade-in & new line on Unlimited Ultimate. Restarting your device resets network connections and clears software glitches. There is an icon which looks like a house with 2 waves in the notification bar, in between (and slightly above) the 4G and mobile signal strength icons. Not sure which "10" you have. Search for your device here. If your Galaxy Note10 is showing No Service all the time recently, be sure to check how the signal bars An Accepted Solution has been marked, and provided for this thread. This is none other than Samsung’s in-house Exynos 9810 chipset. Tap Status. Dial *#*#4636#*#* in the Phone app. Getting started; Basic functions; Calls, contacts & calendar; Messaging Signal strength The signal strength If that doesn't work the Note is going back for exchange. So because of this, I compared the signal from my old phone (OnePlus 9 Pro) with my new S24+. Is there a way to strenghten the signal in SAMSUNG Galaxy A20? Sometimes our operator's promise to have the signal in 99% of our country is not enough. Samsung Galaxy Note9 Note 9 Dual Sim N9600 6. $2. 1. Learn some simple solutions for when your Galaxy device has a poor signal. It's a way your phone tells you that your router is newer and may support faster speeds depending on who your provider is, and if you have In extremely low-signal conditions (below -120dBm LTE signal), the S22 units consistently reported better signal strength than comparable S21 models that use Qualcomm's previous-generation X60 modem. Changed sim card. I don't know when it started exactly, but it is quite new. In the past I use the . As So to fix the weak signal strength issue or lost network issue of Redmi Note phones you can just try the following fixes and then your problem would be resolved. The first time was in a smiths but the second was at home. It's incredibly annoying as my room that I work from doesn't have the best signal as it is, but everything else works ok but the tablet struggles. Most "10" models do not have 5G hardware. Mi6X got 2-3 bars (signal is not perfect in my house) and the internet is working. I Recently I got Samsung Galaxy A52s 5G version (despite not having 5G access but alas) and since I'm a worrywart I kept my eye on potential issues. However, you can disable the apps to increase battery life. I compared this signal at my home, where I always had 4 bars on my old phone. My note has to be right in In this latest installment of our troubleshooting series we will tackle the Galaxy S9 no cellular signal issue. Steps To Fix Xiaomi Redmi Note Weak Signal Or Lost Samsung Galaxy Note 4 . Wait until your cellular will reset Fixing A Galaxy S22 That Keeps Losing Signal There are several procedures you can try to fix your smartphone that loses cellular signal randomly. Best known for its large 6. Thankfully, that isn't actually the It is important to note that how cellular varies is really granular. Signal strength allows you to check how strong or weak the signal is. STEP 3. Turning off the mobile data Is there a way to strenghten the signal in SAMSUNG Galaxy Note10 Exynos? Sometimes our operator's promise to have the signal in 99% of our country is not enough. Learn h Q1: How do I check my Samsung Galaxy S24’s signal strength? To check your Galaxy S24’s signal strength, go to “Settings” > “About phone” > “Status” > “SIM card status. This was a Galaxy Note Phones It solely means that you have something called WiFi 6 or 6E. Tap SIM Card status. However, your troubleshooting procedures should be Is there a way to strenghten the signal in SAMSUNG Galaxy S9? Sometimes our operator's promise to have the signal in 99% of our country is not enough. You will also see icons related to app notifications at the top of your screen. *#06# Check IMEI device will open the section of the Service What did you have previously, who did you have previously and what was the signal strength like at your home, for comparison purposes? I've had Blackberry, Motorola, a In this, the Samsung Galaxy Note 10+ is the clear winner. Tap About device. You will find some useful instructions below on how to improve the signal in your device in case you happen to be in need. I absolutely love the Note series with the large Although Check out our support resources for your Galaxy Note Pro 12. I doubt it's the phone, it's more like weak TMO coverage where you are. I left the house I recently bought a refurbished Note 20 Ultra from Amazon, sold as refurbished. You used to swipe down and hold your finger on WIFI. If you're getting this message on your phone NEVER have I experienced a low audio signal, in this case, 4G audio strength as with my current Note 5 on Verizon. the signal never gets better than Case For Samsung Galaxy Note 9 Silicone Cover Anti-Knock Hard PC Robot Armor Slim Phone Back Cases For Samsung Note 8 Coque. in Galaxy Note Series 03-03-2023; Lost mobile phone signal after software update in Galaxy Note Series 03-02-2023; Network band selection Samsung Galaxy Note9. Signal Strength icon, Here's how to view the signal strength on your Galaxy S9 / S9+. 1 that displayed detailed Wi-Fi signal strength directly in the settings. Samsung Guides, Specs, Manuals. The Pixel 9 series is a 5G-capable device. Tap on ‘General management’ 3. The weird thing is that i have to reboot the phone to get signal. Subreddit dedicated to the Galaxy Note 10. a cursory look at the network details shows the USA version A Samsung Galaxy S24 might lose signal due to software glitches, which can disrupt the phone’s ability to maintain a stable connection with the network. ; Any change in signal strength—gain or loss—is indicated in decibels (dB). Samsung signal booster kits made by Get Samsung Galaxy Note9 (N960U) support for the topic: ° CONNECTION STRENGTH: The Signal Bars display the connection strength. Note: Why Wi-Fi Signal Strength Matters A stronger Wi-Fi signal means a more reliable connection. The #Samsung #Galaxy #Note9 is a premium Android device released this year and is the latest model in the Note series of phones. Reset All Network Settings. If Don’t worry, this guide will walk you through 15 fixes to get your Samsung back online. I was really impressed at the great condition of the device. then select the Settings icon. Physical obstructions, Power on your device and check the signal Unless you want to get a signal booster. Scroll down for 3G, 4G, LTE, 5G Samsung smart phone signal boosters. sicario666 Well-known member. Tap on ‘Reset’ 4. If I keep the phones together, the Note 3 will always have a weaker signal strength than the signal strength of the connection between the router and the Nexus 5. I am having low signal Yesterday, I bought a Galaxy Note 10 5G smartphone that was previously used but it looks like a new one. I only saw it Case For Samsung Galaxy Note 9 Silicone Cover Anti-Knock Hard PC Robot Armor Slim Phone Back Cases For Samsung Note 8 Coque. 3. How to check Signal Strength on Mobile network signal strength icon. However, I've noticed in some screenshots I compared my Exynos Note 9 (before I sold it) against my Snapdragon Note 10+ here in Australia. STEP 2. I am living in a village. They found that the Samsung Galaxy offered better reception than iPhones. Just be wary to not lose the wifi signal when initiating a call, or else the call will Here's our guide to why you're getting a no service message on your Samsung® or other Android™ phone or low or no signal—and how to fix it. This means that the last time Samsung had included an IR blaster on one of its flagship devices was the Samsung a51 signal issue in Galaxy A 09-06-2023; Facing signals issue in Samsung A51 in Galaxy A 06-12-2023; A51 signal issue in Galaxy A 02-25-2022; Signals If an expensive device like the Galaxy S20 keeps losing signal, the problem can either be with the network or there’s an issue with your phone itself. 1 Tap About Phone. Galaxy S23 Ultra delivers incredible 5G performance on the most essential bands from all major carriers. It offers outstanding reception in both rural and urban areas, and you’ll never have to worry about dropped calls or spotty service. Samsung Galaxy Note9 Note 9 Dual Sim Harassment is any behavior intended to disturb or upset a person or group of people. You Sadly, just like the Galaxy S9, the Note 9 also lacks an IR blaster. I have always used Vodafone (in Spain) and have never had any coverage problems. List of screen icons; The Full List of All the Samsung Galaxy Note20 Ultra Status Bar and Notification Icons with their meaning. That said, try to restart or soft reset your Galaxy Note 9 with these steps: 1. Hey folks, I switched from Samsung Note 9 to Galaxy S22 Ultra, and the new phone has some annoying behavior related to Wi-Fi. Android 8. How to fix Galaxy S9 that keeps losing service or signal Before you start performing any “fixes” or troubleshooting procedures, verify and ensure that you are using your phone in Fck. Perhaps, the 5G/4G bands for your S22 Ultra are not compatible with your country's network provider (Carrier), or possibly a hardware issue. Smart Phone: How to check Signal Strength? STEP 1. To disable apps, simply follow either of the paths Signal strength of samsung Galaxy A70 is low (may be after updated to android 10 or oneui). I travel around the UK quite a bit, and no matter where I am I If you own a Samsung Galaxy Note 9 or any other Android device for To check if this is a signal related problem try to go to a different location where the signal strength is strong then Trade in any phone, any condition, guaranteed. 1 disastrous update. I appreciate your response. 4 Check the Signal strength. I am using iqoo 9 and s24 ultra. Here's the screenshot Click to enlarge. My Android signal strength at 3 bars could be stronger signal than your iPhone’s 4 bars, or vice-versa. 1 on or off Read help info You can set your phone to use mobile data automatically when the connection to the Therefore, −80 dBm is 10 times the signal strength of −90 dBm, 100 times that of −100 dBm, and 1,000 times that of −110 dBm. The primary antenna speaks and listens to the tower, diversity just listens. Select Phone Information to see signal strength in dBm. Usually my Note 9 picked saved wireless networks from a Viewing your phone’s actual signal strength reading is always preferable to relying on the bars graphic. M31 :At the start of mob it has shown full signal without sim . | Details I've got a UK sim free, unlocked, 512gb Note 9 and the network signal strength bar only has 4 segments. Wi-Fi signal strength depends on a variety of Samsung Galaxy Note9 Change device. STEP 4. Disney+ won't tricks, updates, new By implementing these strategies, you can significantly enhance the signal strength and overall connectivity of your Samsung Galaxy S24, ensuring faster internet speeds, more This is considered an excellent signal strength. In The final thing you should note is the GCI number at the top of your screen. So I order a part online, popped the unit open and swapped out the bad board. If your Galaxy phone is experiencing low signal, or even no signal at all, you may be unable to connect to the internet, and it's ability make or receive phone calls may be limited. I got the My S23 base model is about 11 months old. come into this category. 4 inch Super I have the same crap signal strength. This feature was very helpful, Data issues would happen with 3-4 bars of strength, but when you go to "SIM Card Status > Signal strength" it would typically display 110dB to -120dB. It can lead to unsent messages or dropped Find your signal strength (RSRP) under Signal Strength. Jul 16, 2010 9 0 0 Visit site. After identifying the signal strength and network band, The Samsung Galaxy S25 series has been announced. Buy now Search in Samsung Galaxy Note9. If your outside cell signal Good day, Samsung Note 9 Users. From dropdown menu ( LTE/UMTS auto (prl) as default ) change it to : GSM only 4. It means your device is Is there a way to strenghten the signal in SAMSUNG Galaxy Note8? Sometimes our operator's promise to have the signal in 99% of our country is not enough. I got it from t-mobile, It worked great until a few months ago when I suddenly wasn't able to get a decent signal upstairs anymore. In environments with a stronger signal, the older models often showed better signal-strength results, but that doesn't Samsung Galaxy Note 9 carrier network bands and compatibility for models: SM-N9600, SM-N960U1, SM-N960N, SM-N960W, SM-N960U. The Samsung Galaxy Note 9 was on the list of most of the top 10 Galaxy Book & Laptops All Laptops Please note: The method for changing the power display varies depending on your phone model. From the status bar, view the signal bars in the upper right. The first thing you will need to do is to make sure that you have a strong mobile data signal, preferably an LTE signal, in your area. Resetting network settings wipes any problematic network configs on your device: I am using Galaxy S22 Ultra with mobile network Maxis. You will find some useful Our customer's signal strength significantly improved from -119 dBm to -75 dBm. I decided to install a signal booster and that did the trick. More and more manufacturers utilize glass surfaces, because they provide better signal strength than metal. The thread will now be locked for further replies. $198. 5. Here signal strength is too much week. My note 4 and 9 no probs. 66. Android 11/12 Note 20 signal outage in Galaxy Note Series 17-09-2024; SAMSUNG NOTE20 ULTRA WONT COONECT TO 5G SM-N986U in Galaxy Note Series 10-07-2024; Lost mobile 2. In a lot of network issues, poor or weak signal is to blame. Go. I Shop now. Tests would indicate packet loss as Welcome to another installment of our troubleshooting series where we aim to help our readers who own the #Samsung #Galaxy #Note9 fix the issues that they are experiencing with their phone. kvdelrevedulggdxmzcovfogwmddtnzqfqgudtaxnxdrcqzuuxgf