I'm not a developer or something even near to that. All information provided here is copied from different internet sources and according to best of my knowledge.
I have created this flashable zip myself and tried this on QMobile Z8 only. It's similar to Wiko Ridge 4G and Blu Life One...
Infinity-Box Qualcomm Module [QLM] v 1.02
Operation : Identify [ v1.02 ]
1. Power Off Phone , Remove battery , Insert back
2. PRESS and HOLD BOTH VOLUME KEYS!
3. Insert USB cable. In some cases require use EDL cable or TP to force EDL mode!
Wait for phone...
Q Mobile Z8 Qulacomm SnapDragon Invalid Imei Repair Success
Without Any Box Success
This Sloution by Shaikh Mushahid Hussain
Fell Happy With Shaikh Mushahid Hussain
>>WARNING : IMEI CHANGE IS ILLEGAL<<
Only write Original IMEI
Qualcomm HS-USB Android DIAG 901D...
Z8 Q Mobile Qulacomm firmware
Android Version 4.4.4
LINK#1 QMobile Z8_MP_KK_QMB_PK_07_4.4.4
lINK#2 QMobile Z8_MP_KK_QMB_PK-444.rar
How to flash:
Download and install QPST 2.7.422 with QFIL and Qualcomm USB Drivers.
Turn off the phone. Hold Vol+ button and plug-in USB Cable. Phone will...
FIRST MIUI V6 ROM FOR WIKO RIDGE FAB 4G/QMOBILE Z8 PLUS
1. Rooted Device
2. TWRP Custom Recovery (Thats Only Available)
3. Unlocked Bootloader
Note: Take a NANDROID BACKUP Before u Proceed
1) Boot to TWRP Custom Recovery.
2) Factory wipe/reset.
3) Format /system