Hi there,
Thanks for sharing that nice development !
I've a nice problem to resolve.
Due to 3G android RIL issue (3G disconnections with USB falling to another PID) I've removed the EM820W from the tablet.(original f/w 11.810.09.19.00)
Original vid : 12d1 pid: 1404
I've unfortunately flashed it with the last Huawei official f/w rel 11.810.10.02.00.
This has turned the modem into an MBIM modem compatible with Win8 only !
New vid: 12d1 pid :1571
I've been able to switch the modem back to a standard mode with Win7, hacking the drivers.
Now it shows the USB virtual COM ports and dc-unlocker can talk with the modem.
Here is what it shows:
Quote:
selection :
manufacturer - Huawei modems
model - Auto detect (recommended)
Found modem : EM820W
Model : Huawei EM820
IMEI : 33333333333333 (faked IMEI)
Serial NR. : W9V5TB1211813526
Firmware : 11.810.10.02.00
Compile date / time : Jan 16 2012 09:50:02
Hardware ver. : MD1EM820WM
Chipset : Qualcomm MSM8200A
SIM Lock status : unlocked
Wrong codes entered : 10 (unlock attempts left : 0)
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Now the question is how to flash the modem back to an older release?
I've a firmware file that looks correctly extracted by your flasher.
Unfortunately Huwaei flasher returns 'No response from Com port'
It reports a 3G PC UI Interface (COM13) which looks correct when I check in the device manager under USB controllers.
The modem diagnostics in the device manager does return the correct information, and dc-unlocker can also communicate with the modem.
I've tried to run revskills as advised in an earlier post but to no avail.
Any suggestion to resolve the communication error ?
Thanks in advance.
Yves
Config : Win7 Pro - .net Framework 3.0 3.5 and 4 installed
Modem in mini Pci-e slot dedicated to Wifi