Download this link >>> E153 Full Software Unlocking
1. Install QPST_2.7.323_(2008-09-19)
2. Backup the NVitems (note: this is very important to do you need that backup on the last part) go this link >>> How to Backup NVitem
if you done Backup the NVitem proceed to no. 3
3. Downgrading Using Huawei Flasher by "FrAnCeScO"
3.a. Plug your modem
3.b. Run Huawei Flasher (Must have Internet Connection)
see if the modem is detected
3.c. Click SELECT FIRMWARE and point it to E153Update_11.609.18.00.00.B427(1).exe
and uncheck the 06.bin
it looks like this
it goes like this
it ask "Press OK if the modem is connected" count 15 seconds the thats the time you press OK and it will load, and leave it until it done, When it done you will see on 8.bin fail its ok just unplug the modem and plug it again and do NOTHING just do the no. 4 instruction.
4. Restoring NVitems (note: if you cant do this your IMEI will be disappeared )
Plug your modem and run QPST at Start > All Programs > QPST > QPST Configuration
Click Start Clients > Software Download
Click Restore then browse the Backup you did on first instruction.
If you done restoring Insert Other Sim and open your Dashboard
Just Comment if you have any Questions and i will answer it anytime.