I would like to know is there any way to **backup Samsung A20s device through download mode/bootloader mode?** My device went into bootloop tried so many things only left to reinstall firmware but its lost user data so i need to backup before doing that any way? How it happens- - Charging over night besides my bed, - My hand touch the adapter and some cracks in the socket heard - The charger still working and charging other stuffs. - In the morning my device turned off randomly. - When I wakeup the device shows you >Device unable to bootup normally with suggesting three options >1. Try again - tried so many times still fails >2. Wipe app data (which is I think safe but needs a backup before doing that, thats what I'm looking for right now) >3. Poweroff - even after powered off its on again (automatically without my actions) and kept doing the bootloop Well why I mentioned the charging case is because that's the only thing i know before this happening (I'm in sleeping too not remember what happens after that),and I doubt if its any in case trouble in the mobile board so that's why I mentioned. Likely I don' think it was that but a doubt. And **I am able to enter recovery mode and bootloader mode (entering via recovery and show download mode (idk is that download or bootloader mode or these 2 things are same, I tried a backup using download mode in realme devices but not with Samsung)** And when I tried to enter recovery it shows a android image and with error text labeled under the image. It shows for a split second and boots into recovery mode. Also happens with powerup mid bootloop (when I saw this I thought some firmware bug. Because of this, that I thought the charging case is not the issue, not sure till now. Is there any way i can fix this? have any method to backup?

In response to this [zero-day vulnerabilities for certain Exynos chipsets](https://9to5google.com/2023/03/16/google-exynos-modem-vulnerabilities/) , I tried to turn off VoLTE on Samsung Galaxy S9 running Android 10 (build number QP1A.190711.020.G960USQU9FVB2) but couldn't find the setting under Connections -> Mobile Networks. This phone runs on the USA AT&T network. (Thanks for the tip that G960U doesn't use Exynos; even in G960F which does use it, the model is not affected.) But I did find the setting to turn it off in another Samsung Galaxy phone, an A20 running Android 11 that runs on the BoostMobile network (which I believe uses the AT&T network as an MVNO). Again, although this phone [does use Exynos 7884](https://www.gsmarena.com/samsung_galaxy_a20-9640.php) it may not be vulnerable, going by the [list of chipsets provided by Samsung](https://semiconductor.samsung.com/support/quality-support/product-security-updates/) . **My question**: What are the factors affecting the ability to enable/disable VoLTE? Is it based on the OS version, the chipset, the provider, or the location (dynamically, based on the presence of LTE there)? It seems that [for some MVNOs it cannot be turned off](https://www.androidcentral.com/volte) ? Another way to pose the question is in terms of technology. In areas where 4G is the only network (since [both AT&T and Verizon would have turned off their 2G and 3G networks by now](https://www.fcc.gov/consumers/guides/plan-ahead-phase-out-3g-cellular-networks-and-service)) , **do ALL voice calls over 4G network are necessarily voice over IP**? If not, does turning off VoLTE means simply that you cannot use data while making calls?

Whenever I am viewing some word document or PDF or the Instagram chat in my Samsung A20 phone, the notification bar automatically scrolls down even when it does not have any notification. Even the "finger sensor gestures" (open and close the notification panel using the fingerprint sensor) have been turned off in my settings. Please help me to solve this problem.

I want to record some audio using a USB mic and my OTG-supporting Android phone. The problem is, because the phone recognizes the mic as an audio input/output device even though the mic has no physical way to make sound, I can’t use the headphone jack while the mic is plugged in. Is there an app or a setting I can use to only use the input portion of the USB audio device, and instead use the 3.5mm headphone jack for output?

I'm pretty sure my Samsung Galaxy A20 reboots daily, at around the same time, showing the usual signs of a reboot: sounds some kind of notification it's rebooted, takes a few seconds to find the SIM and reload the weather widget, asks for the password instead of a fingerprint to log in ("after a reboot"). However, Settings/About Phone/Status/Uptime says it's been up for weeks. What's going on with it? Is it just reloading part of the OS? Is this normal? Why is it rebooting daily?

My samsung a20 was dropped and screen cracked,it worked for a hour or so then screen went completely black...hey google works but can't get the alarm to shut off now...i need all my important information off that device..how do I get the alarm to shut off and if I replaced the screen will everything be the same as before

I've just purchased my Samsung Galaxy A20 and was configuring my settings, and I'm unsure what this specific setting does.

ATI Path Change (Both)
 Physical UART path
 AP path
 Both ATI, No RmPC

I accidentally hit my screen and it chose an option. Now I'm unsure what the default setting was. I've tried to look it up but no luck to help guide me on the right or default setting was. I've chosen "Both ATI, No RmPC", but which one was the default setting?