| Engineering Menu |
To get into the engineering menu, make sure your phone is in standby mode and not in one of the menus (new Ericssons) and press the following sequence:
>*<<*<*
Note: The "<" and ">" corresponds to the left and right arrow keys. If you are using a T68/T300, move the joystick left and right instead and for P800 users, use the jotter up and down.
Usually, the engineering menu will show you useful information like firmware (software) revision, text labels (of current language), hardware version, some engineering settings (contrast) and diagnostic menu. The engineering menu varies from model to model and sometimes even between same model revisions.
| Network Lock Menu |
To get into the network lock menu, make sure your phone is in standby mode and not in one of the menus (new Ericssons) and press the following sequence:
<**<
Note: The "<" and ">" corresponds to the left and right arrow keys.
This menu allows the service provider (SP) to lock the phone to their networks only. This is usually done when the SP offers a mobile phone at little or no cost to the user and do not want them changing SP after getting their mobile phone.
| Language Reset |
If your mobile phone's menu was set to a language you do not understand, you can reset the language to English by:
| Older Ericssons | *#0000# |
| Newer Ericssons | <0000> |
Also, pressing "<8888>" on the newer Ericssons changes the language to "Automatic" (the default language of your service provider).
Note: The "<" and ">" corresponds to the left and right arrow keys. If you are not sure which method works for your mobile phone, try both.
| GF768: Edit Greetings Tip |
There is a way of changing the greetings message that appears when you first switch on your GF768 mobile phone. To get to the menu, follow these steps:
1. Go to the Keylock menu.
2. Set lock to Auto.
3. Press 'YES' then hold the left arrow until the
Greetings menu appears.
| Shortcut for Last Dialed call menu |
If you for some reason don't want to enter the 'Last Dialed calls menu' by using the 'YES' key you can use the following key stroke instead:
First "0" then "#"
| Access menu without SIM card |
To access to the menu in your phone without having a SIM card inside do the following:
type **04*0000*0000*0000#
When display say "Wrong Pin" press 'NO' and you have access to all if not most menus.
Note: if you try this on your phone, the phone may stop responding and you will have to take your battery out to turn the phone on again.
| Checking your Bluetooth firmware revision |
If you want to know the firmware version of your Bluetooth headset (this is suppose to work on an HBH-10, HBH-15 and HBH-20). Do the following: