Nokia 7610, 6600 Hang | Nokia displayed only

When we turn the phone on, nokia displayed only.
The phone can not work normally.
1. Remove memory card (formatt if needed), try to turn on the cell phone.
2. If the problem not solved, Insert batteray, push power button and then press * , 3 , and call ( green ) at the same time (see picture)
3. Formatting on the phone will displayed
4. If the problem not solved, upgrade firmware ( with repairing box : example tornado, jaf, etc)
5. If the problem not solved replace flash and sdram
6. Replace flash need rebuilt imei.