The recent update of samsung m21 has pushed a weird bug in the device.
Upload and download get capped at 10mbps means 1.2 MBps ( somewhere ). The download or upload starts fine. then after sometime the download or the upload capped at 10mbps. My current speed of connection is 100mbps but the device throttle the speed drastically after sometime of the process of download or uploading
Ping increases : from normal 1.2 ms to 300 ms + ( ping to local router host ex . 192.168.0.1 )
Tried method to fix: Reset network , Reset total device || Result : Not working still speed gets capped.
This can be reproduced by this way :-
1. Use FTP server to upload something ( means downloading from this device )
2. Upload big files to telegram ( more than 900 MB )
3. Upload to any other service
4. Download big file ( more than 2 GB )
OBSERVATION : -
Other device like desktop , other 5ghz enable phone like poco f1 and Samsung m31 works fine under upload or download
Solved! Go to Solution.
- m21 update issue
As per you comment I have wiped the cache partition from the recovery mode , But still the issue exists and its annoying while uploading any file
The main issue is with the firmware. So, I have to manaully flash the older firmware in device. And after that the issue was gone
M215FXXU2BUG2_M215FODM2BUF1_INS this is firmware needs to flashed to resolve this issue