GSM-Forum - help c260 hang restart

set is not water damage not damage by droping.suddenlly it is fault coustomer said.now i erase NOR then flash with hwk.also write eprom.problem still.
Region: 1, 0x00000000-0x0000073F, Length: 1856 bytes
Region: 2, 0x00004000-0x00006897, Length: 10392 bytes
Region: 3, 0x00020000-0x00020003, Length: 4 bytes
Region: 4, 0x00021000-0x006583C3, Length: 6517700 bytes
1st Boot Ok, McuId: 000603EE, Rom: 00004B45, 5-1.0 (Trident 2)
2nd Boot Ok, McuId: 000603EE, Rom: 00004B45, 2-1.1
Fll Boot Ok, Vers: 5.11, fl_sceptre3_nice_std_v24.sre
Flash1: Fl_Id: 00B00000_008D0000 - Sharp LRS18CK
Baud Rate Set: 460800 bps
MCU File: C260BBGE1.s3
Flashing NOR part...
Write Done, 6529992 byte(s), Time: 04:40

any idea pls share
but phone not come in local mode see here

Phone Must be with Battery and Powered On !
Failed to enter Test Mode

Phone Must be with Battery and Powered On !
Failed to enter Test Mode