Found this last night:
[FONT="]http://www.gadgetsmartphone.com/2011/06/secret-code-for-samsung-android-phone.html[/FONT]
[FONT="]If your smartphone has an issue with samsung you have OS adroid can use the following tips to resolve an issue with you
[/FONT]
[FONT="]* # * # 4636 # * # * phone information
* 2767 * 3855 # hard reset *
* # * # 7780 # * # factory reset * **
* # * # 7594 # * # * change end call / power option
* # * # 1973286Ȉ # * # * service mode
* # * # * 255 * 663 282 273 2ȳ *#*#* screen file copy (backup media files)
* # * # 526 # * # * wlan test
* # * # 232338 # * # * shows the wifi mac address
* # * # 1472365 # * # * gps test
* # * # 1575 # * # * test another gps
* # * # 232331 # * # * bluetooth test
* # * # 232337 # * # shows the bluetooth device address
* # * # 8255 # * # * gtalk service monitor[/FONT]
[FONT="]Various codes to launch factory tests:
* # * # 0283 # * # * packet loopback
* # * # 0 *#*#* lcd test
* # * # 0673 # * # * melody test
* # * # [/FONT][FONT="]뻊[/FONT][FONT="] # * # * device tests (vibration tests and backlight test)
* # * # 2663 # * # * touch screen version
* # * # 2664 # * # * touch screen test
* # * # 0588 # * # * proximity sensor test
* # * # 3264 # * # * ram version[/FONT]
[FONT="]codes to get the firmware version information:
* # * # 4986 * 2650468 # * # * pda, phone, h / w, rfcalldate
* # * # 1234 # * # * pda and phone
* # * # [/FONT][FONT="]뿗[/FONT][FONT="] # * # * FTA sw version
* # * # 2222 # * # * FTA hw version
* # * # 44336 # * # * pda, phone, csc, build time, changelist number[/FONT]
As you can see - it's for Samsung!
The only code that works for Huawei, is the very first one - phone info. Neil.