BIG PROBLEM!! with T-MobileSDA II(US)

[mikolopatamys]

I've bought lightly used T-MobileSDA II(US) -HTC Tornado!! It haven't any tracks of taking apart under the cover!! But when I take away battery even for a few seconds my time and date are missed to date of making the phone.....maybe someone knows what to do with my phone??? I think trouble in backup battery!! but what happened with it?

[tonyzoc]

I'm not sure about the SDA, but the Cingular 2125 with WM5 did the same thing and I think that's normal behavior. If you flash up to a WM6 or WM61 that problem goes away as the date and time are set from the carrier.

[grahamkdt]

I'm not sure about the SDA, but the Cingular 2125 with WM5 did the same thing and I think that's normal behavior. If you flash up to a WM6 or WM61 that problem goes away as the date and time are set from the carrier.

... not for me! I had this issue with standard WM5 ROM. I then upgraded my ROM to WM6.1, but if I remove the battery, the time and date are still reset to original ROM date. So, no change from original ROM as far as resetting time and date is concerned.

I wouldn't call it a problem though. Sync your phone with your PC and within seconds, the time and date are set to the present, so it's no big issue... just a bit annoying!

[ditikh]

I'm thinking your phone doesn't have a backup battery.
I know mine doesn't.
I don't think it has anything to do with the OS.

[markanthonypr]

I've bought lightly used T-MobileSDA II(US) -HTC Tornado!! It haven't any tracks of taking apart under the cover!! But when I take away battery even for a few seconds my time and date are missed to date of making the phone.....maybe someone knows what to do with my phone??? I think trouble in backup battery!! but what happened with it?
Thats a known problem with Tornado's. When new, the backup battery keeps time for a few minutes after you remove battery, after some short period of time(in my case about 2 months) it stops doing that. However, its not a dead backup battery. Run Celetask, go to TOOLS... POWER STATUS... and notice that Backup Battery status is HIGH, 255% 0mV.
My personal conclusion is... WM6 on Nitro's ROM has some script that tracks and saves "last known time". When you remove battery and power up again, it reads and displays that "last known time". Notice that if you leave it w/o battery for a 10 minutes, time will be 10min off. However, if you enable the "Automatic Time Zone" under the time settings, it will sync time with service provider(if they have that feature).
Not sure if other 6.0Roms do that to, its why I'm asuming its a tweek or script by Nitro.

Now, going back to that Power Status... Shouldn't HIGH be 100%? 255% would be over charged? 0 mV = 0 power? lol Ok, someone pull out the backup battery and messure voltage on it :o) I'm not responsible!

[mikolopatamys]

yeah! celeTask show that. if i wouldnt sell my Tornado ill try to upgrade it to WM 6

[satyakasibhatla]

I think your SDA needs a new back up battery. But, you will have to dismantle whole SDA before you can see small, steel color flat battery right behind key pad. I remember seeing somewhere on the net on how to dismantle SDA to replace keypad/broken screen!!

[ianmills]

The same thing happened to me. The first few months I had the phone, when I took out the battery, the time didn't reset. But after the few months, it would. I assume it is due to an internal battery gone dead.

There is a solution however, when I upgraded to a wm6 ROM, it fixed itself. It adds a feature where the time is automatically updated from the network, so I no longer have any problem with the time :)

That being said though, when I posted this before, someone else said it had to do with the tornado radio update, and not installing wm6 specificly. Anyways, if you update your ROM with the IPL, SPL (spelling?) and wm6, it should work beautifully again :)

[i-boy]

I have a T-Mobile SDA too, I think it's name exactly "Tornado Tempo" (it has 3 media buttons and 1 button for Internet)

And I wonder if these buttons will work when I flash the ROM to WM 6.1, what kind of ROM should I use? Can I save the original ROM for backup (tell me what software to do it)? Thanks alot :)?