First install MediaTek Preloader USB VCOM Drivers
Connect device to pc, when turn it on detect mt6227 phone preloader com port and seconds later MediaTeck inc product.
Need both ports, first one is to backup and flash and other one to sends AT commands.
BACKUP IMEI
Turn on device and connect to comX at 9600 (HyperTerminal, PuTTy....) and read your IMEI
AT^GT_CM=IMEI
Don't continue if can't do it
Make a full backup.
Run FlashTool and open scatter file (WW_S20.cfg), go to READ BACK and add a new file, hex start 0x00000000 length 0x00400000.
Press read back, connect device and turn it on or restart.
Wait OK message.
Reboot device, press power button until reboot.
Flash.
Run FlashTool and open scatter file, select ROM and VIV, press Download button, turn on device or restart and wait..
Wait OK message.
Reboot device, press power button until reboot.
Now your device have 000000000000000 IMEI, restore it.
Connect device, open comX 9600 (HyperTerminal, PuTTy....)
AT^GT_CM=IMEI,yourimei
Test
AT^GT_CM=IMEI
Done!
Can send commands to configure it.
AT^GT_CM=server,1,your.server,port,0#
AT^GT_CM=LJDW#
AT^GT_CM=APN,yourapn#
Turn it off and inster the SIM CARD
Optional disable OTA
AT^GT_CM=OTASVR,1,no.server.here,1234,0#
AT^GT_CM=OT,OFF#
WARNING We are not responsible for any damage, bootloop, bricked or broken and Relationships.
Thanks nop0x900 for Y2517_GW005A_V03_2022.10.21_17 dump and testing.
2G VERSION ONLY
On new fw versions can't change server address but can downgrade it.
FlashTool Drivers
REMOVE TE SIM CARD
First install MediaTek Preloader USB VCOM Drivers Connect device to pc, when turn it on detect mt6227 phone preloader com port and seconds later MediaTeck inc product. Need both ports, first one is to backup and flash and other one to sends AT commands.
BACKUP IMEI Turn on device and connect to comX at 9600 (HyperTerminal, PuTTy....) and read your IMEI AT^GT_CM=IMEI Don't continue if can't do it
Make a full backup. Run FlashTool and open scatter file (WW_S20.cfg), go to READ BACK and add a new file, hex start 0x00000000 length 0x00400000. Press read back, connect device and turn it on or restart. Wait OK message. Reboot device, press power button until reboot.
Flash. Run FlashTool and open scatter file, select ROM and VIV, press Download button, turn on device or restart and wait.. Wait OK message. Reboot device, press power button until reboot.
Now your device have 000000000000000 IMEI, restore it. Connect device, open comX 9600 (HyperTerminal, PuTTy....) AT^GT_CM=IMEI,yourimei Test AT^GT_CM=IMEI
Done!
Can send commands to configure it. AT^GT_CM=server,1,your.server,port,0# AT^GT_CM=LJDW# AT^GT_CM=APN,yourapn#
Turn it off and inster the SIM CARD
Optional disable OTA AT^GT_CM=OTASVR,1,no.server.here,1234,0# AT^GT_CM=OT,OFF#
Don't ask me for drivers installation
Y2517_GW005A_V03_2022.10.21_17.zip