QMobile M125 tested flash file can be download from this post. You can flash this file using any Chinese Mobile Phone service device. I have used miracle box for flash and CM2 dongle for repair imei. because i failed with miracle box. You must have installed SPD drivers in your pc to work with this phone.
QMobile M125 Boot key
To work with most of Chinese mobile phone we need to press boot key to connect phone with service devices, Specially Spreadtrum (SPD) mobile phones. You can try by different keys. In this phone i have used special boot cable to connect phone in boot mode. You can also buy or make your own cable. by following instructions given in this post.
Screenshot
Flashing Log:
1.Please Make sure install the driver 2.The Phone may be required to read and write keys 3.Pulled low may not, manually set. Definition Applied 1. Power Off Phone , Remove Battery, Insert Battery Back 2. Please Hold BootKey(UP and DOWN),Insert USB cable 3. Use Miracle Boot Key In cases Boot key not Find 4. Battery Should be Charged more then 50% Scanning USB Serial port... SU2Serial Port: COM34 Connecting to Phone,Wait.. Done. Infor: SPRD3 Initialize boot9... CPU type: 6531A Flash type: NOR Flash ID: 00EF0040(00160000) Flash Model: W25Q32BV Flash Size: 0x400000(4.0M) reading,Wait... Read Completed. File save to: C:\Users\pakfo\Desktop\Qmobile M125 spd 6531\Backup\6531A_W25Q32BV.bin Definition Applied 1. Power Off Phone , Remove Battery, Insert Battery Back 2. Please Hold BootKey(UP and DOWN),Insert USB cable 3. Use Miracle Boot Key In cases Boot key not Find 4. Battery Should be Charged more then 50% Scanning USB Serial port... SU2Serial Port: COM34 Connecting to Phone,Wait.. Done. Infor: SPRD3 Initialize boot9... CPU type: 6531A Flash type: NOR Flash ID: 00EF0040(00160000) Flash Model: W25Q32BV Flash Size: 0x400000(4.0M) writing,Wait... Write Completed.
IMEI repair Log:
Operation : Repair Security [ v1.24 ] 1. Remove battery. Insert USB cable 2. Press and hold BootKey ( Skip, if use BootCable ) 3. Insert battery ==== Wait for phone... Phone found! [ 34 ] Port Opened Sync... InitBoot Done [ 0x81 ] , Ver : SPRD3 Sync... Sending boot ... Boot Sent , starting... Boot Ver : Spreadtrum Boot Block version 1.2 Boot Ok CPU ID : 6531 , FDLStat : 0100 [0] Flash DIE : 00C8 0060 0016 0000 [0] Flash VEN : GigaDevice , GD25LQ32 [0] Flash CAP : 00400000 Process can take some time, please, wait Init ok, send data Write done! Elapsed: 00:00:13 Reconnect Power/Cable!