Turn on your phone, and go to the dial screen by pressing the GREEN phone icon.
In the dialing screen type the figures *#3646633#
The phone should go into engineer mode. Scroll to RF (radio frequency)
test tool, this is the 10th option and will be in the second screen.
Select the RF(radio frequency) test tool option and then select the GSM option.
When a message appears hit ok to verify.
Go to the power scan option then select the band option. Click on the right arrow till you see DCS 1800 . Press OK.
The phone should enter into scan mode, wait a few minutes until it
appears to have stopped, if it hasn't stopped within a 10 minute time
frame proceed to the next step.
Plug the phone into a computer via a USB connection.
You will see the following options.
The phone should power OFF at this point.
Switch the phone back on and go into the settings menu
Select network setup
Select prefered mode, select GSM preferred and press OK
This step is crucial. If the change does go through you'll see mode switching to GSM, then to OK.
If it goes through smoothly go to Settings again, and click on 'Restore Factory settings...
If it the phone doesn't accept the setting you'll see mode switching then it will display UNFINISHED.
If you see that message, please go back to the first step and do everything over again.
The definition of madness is doing the same thing again and again and expecting
different results. But it's worth a try.
You'll be asked for a password. The password is 1122. If that doesn't work try 1212, 0000, 8888, or 1234.
A message will appear. Click Yes.
When the phone starts up again, you'll see a Chinese message. It's asking you to click on the screen for screen calibration.
Click on the touchscreen.
Once that's done you'll be shown to the main menu.
Oh No! It's In Chinese!
Fear not...
To change the language back to English, just go to SETTINGS (the gears/cogs icon).
Then choose menu item 4, then 3 and you'll be able to choose English.
Still more steps...
Go back to SETTINGS, then NETWORK SETTINGS, then click on SIM1
network setup (or SIM2 network setup depending on which slot you
previously put into WLAN Only).
There you'll be shown two choices: Network Selection and Preferred mode.
Make sure that Network Selection is set to AUTOMATIC and not MANUAL. If it says MANUAL, go in and change it to AUTOMATIC.
As for Preferred mode it should say GSM Preferred. If not please start the beginning again.
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