Dead huawei 1752. Any solution? - GSM-Forum

G.. · 10-22-2013, 08:52

Hello.
Have some dead huawei 1752.
No LED blink, no device recognized.
PCB gets 5V. Connector is not broken.
Did reflow PM6658 Power IC and main quallcom CPU. No success.
Maybe anyone had any info/documents on this or similar modems? Diagrams?
Don't have an osciloscope, cant check if quartz is generating. Will try to put good one from other modem with broken USB.

twistmobile11 · 10-23-2013, 07:58

Download and run the full version Sakis3G script from sakis3G website.

Then check modem is running or not.

G.. · 10-24-2013, 09:13

Quote:

Originally Posted by twistmobile11

Download and run the full version Sakis3G script from sakis3G website.

Then check modem is running or not.

If modem is alive, shouldnt it recognize as any device in device manager?
I have no new devices in device manger recognized when modem is connected to usb.
Ill try Your suggestion, but i believe it is hardware,firmware problem.

10-22-2013, 08:52	#1 (permalink)
G.. Junior Member Join Date: Nov 2010 Posts: 3 Member: 1456092 Status: Offline Thanks Meter: 0	Dead huawei 1752. Any solution? Hello. Have some dead huawei 1752. No LED blink, no device recognized. PCB gets 5V. Connector is not broken. Did reflow PM6658 Power IC and main quallcom CPU. No success. Maybe anyone had any info/documents on this or similar modems? Diagrams? Don't have an osciloscope, cant check if quartz is generating. Will try to put good one from other modem with broken USB.

10-23-2013, 07:58	#2 (permalink)
twistmobile11 Junior Member Join Date: Oct 2013 Location: India Age: 37 Posts: 12 Member: 2051082 Status: Offline Thanks Meter: 1	Download and run the full version Sakis3G script from sakis3G website. Then check modem is running or not.