1. To improve the content:
* When you can not dial without area code "7" at the beginning of the telephone numbers of attack.
* First, when connecting USB to identify the problems of slow improvement.
2. Device Software:
* Computer, download data cable (TEST CABLE), adapter, Samsung PST, S189 BJ10.bin
3. Upgrade steps:
Connect adapter and cell phone; in adapter to install the battery (the same connection with the S399).
Run Samsung PST, option S189.
To make mobile phones in DOWNLOADING MODE state (off state, press the "9" + "open key"). Communication Port Selection COM * (according to identification of choice).
In the 'Software Download Option' Select EMERGENCY (Phone).
Point Open File File Open icon, bring up S189 BJ10.bin file.
Click Start Software Download icon, the computer displays the percentage of the process of upgrading. .
To clear the memory operation. Followed by Menu (menu) -9 (settings) -7 (Reset) - enter '00000000 '-2 (all reset), select' yes'.