I have a REALME 9 4G (RMX3521) under the RMX3521_11_A05 version, I received the RMX3521_11_A11 update version, but I can't install it. The downloading is always successful, but stucks after that at the extraction step (don't start and stays at 0.0%), I tried many methods, like clearing cache of the "system update app", rebooting, resetting the phone, but no one worked for me.
Thank you for your help.
Thank you for your help.