Charmer will not boot unless connected to USB ?

[triac]

Hi All,

I have a strange problem I wish to share (don't worry its with my Charmer !)

I am not sure when it started occuring, but now it will only boot with the USB connected. Without it I get a hangup on the 'Wondows Mobile' blue screen. Connect the USB and the version numbers on the T-Mobile boot screen come up much quicker and then after about 1 minute of the Windows blue screen it is on.

It is really weird ?

The onlys changes I have made is the registry memory improvements (mentioned in this forum) to try and get a little extra speed. I am pretty sure it did not start immediately after that though.

I was wondering if anyone else has encountered this

and if so

how did you overcome the problem.

Thanks.

[hanmin]

yes, it is weird.

what you can do is

(1) see if it is battery. try connect it to your charger to see it boots up. If so, maybe it is a batteyr/power problem

(2) check if it is what you've done - back up (using any software) and hardreset your device. if you device is not able to boot up after hardreset, it is a hardware fault, have it serviced :)

[stillo]

Guys, I have the same problem with Time & date backup when change main battery but with more sympthoms:

Aprox. 1 month of using my XDA mini S (original O2 UK ROM) I faced to problem which seems to be HW status.

I didnt not change WM5, I did not change ROM and no new soft has been installed during last month. I have no backup manager like SPBackup or
Backup manager installed on miniSD card (or in main memory) and no backup process is planned in Today screen.

PROBLEM:
It is not possible to boot Windows Mobile after soft reset WITHOUT ORIGINAL wall charger. It does not matter if I make soft reset 5x-10times, PDA frozen on
WM5 booting logo and keeps like that for hours with backlight ON.
Neither USB-PC cable connections nor other charger (from GPS receiver 500mAh) does not help to boot WM5.

I found out, even if PDA is POWER off (Power button press for more than 3sek) and I want to turn it on, PDA freezes on Windows Mobile window.

I got answer from one hungarian service point like:
"We know the symptom that you described below. Solution for that is a software update. Unfortunately there is a built in protection in upgrading package and we can not update phone software of other country's phone."

MY SOLUTIONS:
I doubt about correct solution from service because:

I make a miniUSB cable (like for charger) and connect other main battery to this cable. When second battery is connetted instead of original charger, XDA mini S boots and restarts correctly without freezing on WM screen.

I tried to to test how original backup baterry (in fact capacitor) works - parameters in Service manual at page 81 (CG1, Gold cap, 0,07F, 70 Ohm, 3.3V, Part number 16H00012-00M).

The I connect a capacitor 3.3V, 0.02F to this USB cable. I charge a capacitor externally and try to restart device with capacitor connected on USB cable (now without 2nd battery). Everything was OK.

Then I completely discharge externall capacitor and interesting was, that device can boots up correctly even with discharded capacitor because during booting, capacitor has a time (maybe 5-15s) to recharge.

CONCLUSION:
I think the backup capacitor (Part number 16H00012-00M) is damaged.

Do you know idea where to buy it on web (the best in Central Europe for me)?

Now with external capacitor on miniUSB cable in my pocket, it allows me to make soft reset or reset if device freeze anywhere at the street without 240V original charger. "What a Soviet solution ;-)". BUT WORKS! ;-)