Hello,
I need help because I want to update my SMSC but I can't because when I enter *#*#4636#*#* in the "phone" app, the *#*#4636#*#* disappears and nothing happens.
What should I do?
I ended up changing my SIM card and it worked
Thanks anyway
thank you for coming back to give the answer ;)
Check this link to understand.
thank you for coming back to give the answer ;)