A problem after unlocking! - Palm Treo 750 ROM Development

Hi All:
I have a problem after unlocking my Cingular USA Treo 750:
The sound goes off by itself, and for no apparent reason. A Soft Reset (with the button next to the SD socket) will bring the sound back, but it will eventually go off again on its own.
Yes, I've checked the switch on top! Yes, I've checked to be sure that TTY/TTD is set to off!
Palm has a software fix for this: http://www.palm.com/us/support/downloads/audio_alert_update.html but it is only for ATT/Cingular phones with Software Version TREO750-1.13-CNG, which is what is on my phone now.
Since I've unlocked my phone, does the Palm patch still work for me?

alleyandy said:
Hi All:
I have a problem after unlocking my Cingular USA Treo 750:
The sound goes off by itself, and for no apparent reason. A Soft Reset (with the button next to the SD socket) will bring the sound back, but it will eventually go off again on its own.
Yes, I've checked the switch on top! Yes, I've checked to be sure that TTY/TTD is set to off!
Palm has a software fix for this: http://www.palm.com/us/support/downloads/audio_alert_update.html but it is only for ATT/Cingular phones with Software Version TREO750-1.13-CNG, which is what is on my phone now.
Since I've unlocked my phone, does the Palm patch still work for me?
Click to expand...
Click to collapse
I'm under the impression that the sound patch is carrier independent. If your firmware matches the requirement stated at the Palm download webpage, then you should be able to install the patch regardless of which network you're currently using your phone on.
It only matters if you're running another ROM.
FYI, the WM6.1 ROMs do not have this issue.

Related

MDA Vario, not connecting to GSM network after ROM update

Hi,
I've recently updated my MDA Vario to the new dtuch QTek rom (2.18 I believe). Everything went smoothly and my phone now has a much higher standby time. However, in the settings menu for my GSM network it says 'no service' where it should say 'T-Mobile. I tried softreset, switching flightmode on/off, using 'automatic' and 'manual' to select a network, removing SIM card, but nothing works? Right now, I can't receive any calls even tho people hear it like I'm just not anwsering my phone and the 'call' hardware button or the 'phone' button in the windows menu don't even open up the call screen where I can enter a number.
I only CID unlocked my device before I updated to the new rom so I am not sure if I needed to SIM unlock as well but I don't think so.
Can anyone help me out with this problem? Thanks in advance
anyone? I am beginning to think this is a serious problem... maybe my telephone is defect? :S Or do you think this is just a software problem?
try flashing it back to the old ROM
Can I just overwrite the 2.18 ROM with the older T-Mobile rom again? And if anyone else knows a better solution that does not require another rom 'update' please let me know!
Also, I've found out that a hard reset didn't work, in fact, I couldn't hardreset because when I needed to enter the Call key to confirm the reset, the key just didn't work... :?
Okay, after downgrading again to the T-Mobile 1.6 rom the phone seems to get a signal again? How can it be that the new QTek rom doesn't get a signal but the old T-Mobile rom does? I DID CID unlock the device, and altho I am unsure if it worked, I assume it did, since the QTek install went flawlessly. I did NOT do a sim unlock, but I figured that wasn't needed since I would stick to T-Mobile anyway?
Sorry man, I've no idea. The main thing is that you now know that there is nothing wrong with your hardware.
If the radios are different versions I guess you could try keeping the old radio and updating everything else.
Good luck.
On the ftp there is a tmobile file voor connection settings

Vodafone Treo 750 and lost sound

Hi,
I bought my wife Treo 750 (from Vodafone) on eBay couple of days ago. I myself have Wizard device so familiar with firmware updates etc.
My wife started complaining almost immediately about inability to set custom ring to MP3 file which she configured (all incoming calls were coming with default sound regardless of phone settings).
Now couple of days later phone does not react at all to any remindeds be it incoming phone calls or alarm. It does not vibrate, sound or flash on any of the events.
Is it known issue? What could be wrong? Is it worth trying to flash ROM or it's not worth it?
first, is the top switch set to silent? if then the boxes for vibrate aren't set, then your treo doesn't give any sound so far i know.
second, In sound and settings the two boxes for vibrate when swith on or off should be checked.
Be sure that all sound settings are set correct, then you could try a hard reset if other options don't work.
I had the same problem. Call up Palm Service Center, follow the standard diagnostic steps:
1. Check the ringer switch.
2. Check the TTY settings to ensure it is off.
3. Check all volume to ensure that it is all max.
I have all the above set correctly. The best part is, the CS told me to hard-reset the phone. I told her that I have already done it and that the problem will occurs after using the phone for a few hours. Apparently, the ringing will be ok if I do a soft-reset. But after using for a while, the problem will appears and I will have to soft-reset again.
Last resort, CS issued me a SRO and told me to go down to the service center to do a 1-to-1 replacement. The new rom is TREO750-1.16-VFE and firmware is 1.12c
ptan218 said:
I had the same problem. Call up Palm Service Center, follow the standard diagnostic steps:
1. Check the ringer switch.
2. Check the TTY settings to ensure it is off.
3. Check all volume to ensure that it is all max.
I have all the above set correctly. The best part is, the CS told me to hard-reset the phone. I told her that I have already done it and that the problem will occurs after using the phone for a few hours. Apparently, the ringing will be ok if I do a soft-reset. But after using for a while, the problem will appears and I will have to soft-reset again.
Last resort, CS issued me a SRO and told me to go down to the service center to do a 1-to-1 replacement. The new rom is TREO750-1.16-VFE and firmware is 1.12c
Click to expand...
Click to collapse
I bought phone off eBay and it's looks like European model while I'm in US I don't think I can call Palm with this options.
It's a bug @ 750
I think soft reset will do
Djoe said:
It's a bug @ 750
I think soft reset will do
Click to expand...
Click to collapse
What is bug in 750? How exactly it defined?
artisticcheese said:
I bought phone off eBay and it's looks like European model while I'm in US I don't think I can call Palm with this options.
Click to expand...
Click to collapse
I bought mine from ebay too, and I am currently residing in Singapore. I believe that as long as the original owner did not register his phone, you are still consider the legitimate "first" owner. The best part is, they just verbally ask you when was the phone purchased; you do not even need to produce the proof of purchase.
@artisticcheese:
couple more questions to diagnose your problem.
1. what software does your wife use? spb pplus has been known to mess with the treos notifications system [there is a fix at spb]
2. where are the ringtones located and how were they added to the phone.
for #2. the Treo seems to be iffy if you don't add the tones using the Sounds app, also I'm sure you know that ringtones in Storage cards tend to be less dependable than the ones in Main memory cause sometimes Storage cards initialize too slow and the system reverts to default tones instead.
----
my suggestion
back up your wife's data [PIM info]
hard reset - add tones using sounds - observe
if problems insist try to have the unit replaced
if problems don't then it's probably software issue.
Sounds which are being set are built-in sounds. We hard-reset phone and did not install any additional software, then tried to change sounds via built-in menu. Nothing extra installed on a phone.
artisticcheese said:
Sounds which are being set are built-in sounds. We hard-reset phone and did not install any additional software, then tried to change sounds via built-in menu. Nothing extra installed on a phone.
Click to expand...
Click to collapse
Damn I was hoping it would be a software issue, but it might be hardware after all. I hope you can have the unit repaired/replaced ASAP. Good luck and go with the FORCE.
This happened to my 750. There is a fix @ the Treo Central discussion forums. Someone created a .cab file that got my sound back. If you cannot find it, let me know.

TYTN II Missing Calls

Hey guys, I'm new here, and I guess I should start off with "HELLO!" instead of throwing my problems at you...but alas.
I've just recently purchased the TYTN II (factory unlocked from Taiwan), and love it--minus this one, relatively annoying problem: the phone seems to be missing a lot of calls. I could be sitting with full (reception) bars, and the TYTN will send someone straight to voice mail. I've never had any problems dialing out, and just to reiterate, I don't believe that it's a reception problem. This "call rejection" problem seems to occur sporadically, and is usually solved when I make a call out. I'll give you an example of the problem.
1) Friend calls, gets to voice mail.
2) Friend calls my house, I look at my phone, full bars.
3) I have Fido's "Who Called" service, so shortly I get a text saying I missed a call from such and such number. (Oh, yes, text messages don't seem to be affected by this problem)
4) I call my phone, from my house, knowing full will it has full bars and that I just got a text message.
5) I get the damn voice mail, directly.
6) I call my house using the cell--no problems.
7) I call my cell again, and lowe and behold, it works.
The only logical conclusions I've been able to come up with so far are that:
A) for some reason, Fido's (Rogers') towers seem to have a hard time staying connected with my phone...which doesn't make too much sense since I still get text messages problem-free.
B) since they've just recently switched to HSDPA (yes, I'm using WCDMA), that the network has a hard time switching back and fourth from GSM.
C) the "Name Display" service which comes with my value package...(and can't take off separately) is incompatible with my phone, thus causing certain calls to be rejected with an incoming call is received with this data.
D) God forbid, my phone has a problem...and I need to get my friend to go back to Taiwan and fetch me a replacement.
Sorry for my first post being such a lecherous one...but I do hope someone is able to help me out! I'm not to sure what I expect any of you to do...maybe verify that this is some sort of authentic problem...and not scenario "D" so I can pray for a solution to this problem in the.........future (yes, it may be a long and distant future, but for some reason, I'm able to bare with this issue if there is a glimmer of hope). Thank you guys so much!
That problem reminds me back in the days with my wizard, but that issue, the caller would hear rings on their side, but wizard wouldn't get a missed call or ring. That was due to what version radio you had. For that, not sure what it is. You can explore switching radios and seeing if that works. Certain radios work better in certain areas. I have AT&T in the U.S. and rarely have that problem. Sometimes I get that with bad reception...but that is with bad reception, not good reception.
Radio
This is almost certainly a radio issue. There is a thread with every radio currently available stickied at the top of the kaiser upgrading section.
Thanks for the replies so far guys, but if my understanding is correct, and this "radio" problem only effects the output of sound from my TYTN (thus not able to hear the call coming in), then I don't believe that I am experiencing this issue. Like I said, the calls are going DIRECTLY to voice mail. I've held the phone in my hand when getting this "call reject" problem. No sign of an incoming call whatsoever. Thanks again guys!
Radio
Oh, and I also just checked, I have Radio Version: 1.27.15.32, which I believe is more recent than the current radio versions being offered on here...I don't believe 'downdating' will help, will it?
I sometimes get a problem sort of like this. I live in an edge area and this comes up if I'm surfing the net. Sometimes it's like the connection is never released and I have to soft reset the phone before I can make or receive calls again.
It's FIDO's problem ! probably you are in Canada ! I have two kaisers with exactly the same problem !!! try to disable the 3G. go to phone\menu\options\band and change the network type to GSM.
I haven't had any problem so far
Thanks, hma4. That was one of my guesses...sort of makes my data package moot, though. Thanks to everyone who tried to help out!
Oh, and by the way, 'hello fellow members of xda-developoers."
Sloboi said:
Oh, and I also just checked, I have Radio Version: 1.27.15.32, which I believe is more recent than the current radio versions being offered on here...I don't believe 'downdating' will help, will it?
Click to expand...
Click to collapse
FWIW, "downdating" as you called it, has actually solved many problems with reception and battery life of the Kaiser, and for some has helped with the Camera (How? I dunno... it's still just a slow and laggy camera to me that needs an excessively large amount of light for a decent picture).
So changing your radio could indeed actually help. Now as for which radio is best well... apparently that depends on your area. Most seem to swear by 1.27.11.31 and 1.27.12.17. 1.27.12.10 is a newbie that hasn't been tested much, but people seem to get good results from it as well.
Sloboi said:
Oh, and I also just checked, I have Radio Version: 1.27.15.32, which I believe is more recent than the current radio versions being offered on here...I don't believe 'downdating' will help, will it?
Click to expand...
Click to collapse
This is a much sought after radio for testing since it's later than any other non-at&t radio. If you could only dump it for the rest of us.
Sure thing, just show me how.
I got the sam eissue
Sloboi said:
Thanks, hma4. That was one of my guesses...sort of makes my data package moot, though. Thanks to everyone who tried to help out!
Oh, and by the way, 'hello fellow members of xda-developoers."
Click to expand...
Click to collapse
I have an MDA VArios III and have the same issue. Did that suggestion fix your issue?
In addition to this my handset sometimes cannot switch off. It just stays permanently on. Even a soft reset doesnt help. If I leave it for a day, it seems to sort itself out. I've deleted a prog i loaded call "Touch Commander", It hasnt happen since so I am not sure if it has fixed the latter issue.
Cheers
Max
I'm on Fido, and I have the exact same issue. I never missed any calls when I put my sim card in my old Magician. I guessed it was a network problem, but I had no comfirmation.
I'm going to go with compatibility issues between Fido/Rogers and the Tytn II... I'm just praying that this is an 'early' adopter issue for HSDPA enabled phones. I haven't tried to go back to GSM because this problem is so sporadic that it might be days before I figure it out. No missed calls today. Good luck to all of us who have the Fido/Rogers + Tytn II combination.
Sloboi said:
Sure thing, just show me how.
Click to expand...
Click to collapse
If you can, use this procedure from:
http://forum.xda-developers.com/showthread.php?t=359015
I've added additional steps to help:
Requirements
- Qualcomm QPST software (attached in thread)
- QC diagnostics drivers (attached in thread)
- HardSPL, only needed if you want to dump from a production model
Procedure
1. Restart in tri-color bootloader mode and start MTTY in USB mode
2. Type: rtask a
3. Type: radata Note: What you type is not echoed on screen!!!! (after pressing enter ignore the error message "Parameter error")
4. Type: retuoR Note: What you type is not echoed on screen!!!!
5. Type: rtask c
After step 5. the device will enter QC diagnostics mode and it will install 3 new devices on your PC. Make sure you install the attached drivers. After driver installation look in device manager to find which COM port the QC diag driver uses.
6. Exit MTTY
7. Start "QPST Configuration" and check if the device is recognized and if it is in "download" mode
8. Start "QPST Memory Debug", click "Get Regions" and then "Save To"
9. Upload the dumped files on XDA Devs FTP server
Dump NV Items
The configuration of radio are stored as NV items. It is possible to dump these as follows:
1. Hold down camera button and hit "Reset Phone" in the Memory Debug Application
2. Restart in tri-color bootloader mode and start MTTY in USB mode
3. Type: rtask c
4. Exit MTTY and start "QPST RF NV Item Manager" and select Read from Phone from the File menu followed by Write Only listed Items to .QCN file
5. Also, select Write Only listed Items to .TXT file.
I've already dumped my 1.27.12.32 and uploaded to XDA dev for analysis for the steps needed to rebuild it back into a .nbh that can be reflashed.
i have an MDA vario III on t-mobile UK and had the exact same problem...i called up and they sent me a new one about 2 weeks ago...only to find the exact same thing is happening on this one too!!
any one with any ideas??
dreboi said:
i have an MDA vario III on t-mobile UK and had the exact same problem...i called up and they sent me a new one about 2 weeks ago...only to find the exact same thing is happening on this one too!!
any one with any ideas??
Click to expand...
Click to collapse
This has happened twice to me. My phone would not switch off. I reset it a number of times to noavail. Some how it righted itself.
Hi all,
I was searching the forums for info on exactly this issue. I am having the same problem using a touch cruise on Fido. arg! is it a 3g thing? any new news or ideas? I certainly hope I don't have to turn 3G off in order to ensure I can receive calls consistently!

Diamond sends SMS after each boot

I got me a Touch Diamond in the rounder shape of the T-Mobile MDA Compact IV. It came in a sealed box from eBay and I've used unlocking software that I also found on eBay. As it turns out, this software seems to originate from this forum.
As far as I've researched it, right after the lock was removed, the phone started sending SMS messages to the number SMS032837 each time it is reset (since I've never used this phone locked it *could* have done this already, but I doubt it). Even if I switch off the GSM radio, and then reset, the phone waits for the radio to come back on and immedately sends a message.
I have no clue to what's the message is about or whoever is the recipiant but that's not the main issue here; it should not do this, period.
ROM: 1.37.110.3
Radio: 1.20.OliNex
Protocol: 52.26a.25.09U
Anyone any idea what is going on?
TIA,
XDArjen
sorry i dont have any idea
try this steps
1-try hard reset
if not work
2- you have an old ROM so
upgrade it to the latest ROM for your country or use cooked ROM if you want
Could a program similar to RemoteTracker be installed on your Diamond ?
That would explain the SMS, as the software detects that you changed the SIM card.
yea sounds like some program like remotetracker, try flashing a new ROM, as i assume it's build into the ROM by the seller, no idea why though.
xdarjen said:
I got me a Touch Diamond in the rounder shape of the T-Mobile MDA Compact IV. It came in a sealed box from eBay and I've used unlocking software that I also found on eBay. As it turns out, this software seems to originate from this forum.
As far as I've researched it, right after the lock was removed, the phone started sending SMS messages to the number SMS032837 each time it is reset (since I've never used this phone locked it *could* have done this already, but I doubt it). Even if I switch off the GSM radio, and then reset, the phone waits for the radio to come back on and immedately sends a message.
I have no clue to what's the message is about or whoever is the recipiant but that's not the main issue here; it should not do this, period.
ROM: 1.37.110.3
Radio: 1.20.OliNex
Protocol: 52.26a.25.09U
Anyone any idea what is going on?
TIA,
XDArjen
Click to expand...
Click to collapse
Hi,
I`ve got MDA Compact IV on T-Mobile UK with original ROM and Radio (I just need to) and I`ve noticed that after every re-boot it sends above mentioned by you text.
Actually, it sends 2 texts: 1st to 32837 (on the on-line bill it`s clasified as
"unbranded" and it`s free of any charge)
2nd to 100203005 (clasified as "SMS text messaging" and it is also free).
I was surprised as well, so started to investigate.
I`ve found that above texts got something to do with W`n Walk service and T-Mobile My Faves and they are like a system messages.
They are NOT using any of the tariff allowances and they are completely free.
I`m sure because I`m checking my bill very carefully every month and it is my 3rd bill since I started using Compact IV.
I think that every HTC Diamond and MDA Compact IV sends those texts when logging into GSM Networks, but not every network provider shows them on their bills. With T-Mobile it shows on My T-Mobile On-Line account, but not on any paper or electronic bill.
There is more info about the case on other forums, just "google" them numbers and you will find it.
So, DON`T PANIC, everything is in order.
P.S.
My handset is unlocked and I was using foreign SIM card with, whilst on holiday and I haven`t noticed any extra charges for above texts, nor any other problem.
Regards.
snark_be said:
Could a program similar to RemoteTracker be installed on your Diamond ?
That would explain the SMS, as the software detects that you changed the SIM card.
Click to expand...
Click to collapse
Hey snark_be,
I'm not sure, it's a brand new T-Mobile that I got in a sealed box. The owner got it as an upgrade but didn't want it. So it came locked to T-Mobile and I had to unlock it since I'm not a T-Mobile customer.
Could T-Mobile be using this tracking method? The seller of the unlocker could have added it, I don't know, he hasn't answered my email (yet).
The SMS goes anytime the device boots, not just after inserting the SIM.
HTC ROM upgrade site rejects my serial number if I want to download a new ROM.
Addicteddddd said:
yea sounds like some program like remotetracker, try flashing a new ROM, as i assume it's build into the ROM by the seller, no idea why though.
Click to expand...
Click to collapse
That was the plan, but that seem's a bit of a hornet's nest. Can I assume safely that the T-Mobile is a true HTC Touch Diamond? Will I be able to return to non-brick if something doesn't work? I mean when I install Hard-SPL first (it's installed already by the unlocker, but an older version, like 1.24)?
kowalsky_tom said:
Hi,
I think that every HTC Diamond and MDA Compact IV sends those texts when logging into GSM Networks, but not every network provider shows them on their bills. With T-Mobile it shows on My T-Mobile On-Line account, but not on any paper or electronic bill.
Regards.
Click to expand...
Click to collapse
Tom, they show up on my bill, so I have to pay for them. And my provider logs them as International calls.
I don't have the luxury of sitting idle because it make the device useless as a phone. I will peruse the forum about this matter but I was already planning upgrading the ROM as I find the device very unresponsive.
have a look in the rom section here and install a new one
xdarjen said:
That was the plan, but that seem's a bit of a hornet's nest. Can I assume safely that the T-Mobile is a true HTC Touch Diamond? Will I be able to return to non-brick if something doesn't work? I mean when I install Hard-SPL first (it's installed already by the unlocker, but an older version, like 1.24)?
Click to expand...
Click to collapse
Just flash the latest HardSPL, 1.93 I think, and then head over to the Diamond Wiki and download/flash the newest WWE ROM you find (1.94 I think).

Help required with MDA Compact faults

Hi, I am in need of some help with my MDA Compact which is on a T-Mobile contract.
I am having a number of issues, a lot which have occured since I got it just over a year ago but I have lived with until now. The main issue I have with it now which is quite a major issue is that I am not receiving all of my calls!
I have had a number of people say that they cannot get in touch with me as their call to my phone goes straight to answerphone as if its switched off or has no signal. I then later get a text from T-Mobile saying I have a missed call. Now I know its not turned off and this fault is occuring in full strength signal areas so I assume it is a fault with the phone or software.
I was told by T-Mobile that they needed to send it away and it would be upto 2 weeks before I got it back, I cannot do without it for that long and my old Vario II's battery has died now so cant use that. They said it would just have a software update and I could do that myself.
The other issues I have had with it include....
Turning on screen and it totally freezes, nothing works including the power button, I have to remove the battery.
Press phone button to make a call and it takes me to the programs screen, this happens 2-3 times before sorting itself out.
Internet page gets stuck in ladscape mode or slow to return to portrait.
Hanging in screens and buttons slow to react
Crazed screen as if the screen is cracked, rebooting it is only cure.
On the make call screen, last two dialled numbers appear but keypad is missing although when you press the screen where the numbers should be they appear as each is pressed.
When receiving a message the phone vibrates and will not stop, it continues until phone is turned off.
I sometimes get a phantom unread email that is not there, have to delete email account and set it back up again to clear it.
Back of phone gets very hot when using Web 'n' walk
Also I have Sync'd with my old computer at work last year which was fine. I have downloaded Activesync 4.5(I think) to my laptop and connected my phone to try and back it up. It Sync's but will not copy any contacts, it says I have to disconnect device, download Outlook & open it but I already have Outlook(I have XP home edition 2002 SP3 & Outlook Express 6)
There have been many other faults which I cannot remember right now, I love the phone but I will end up binning it soon if I cannot sort it.
Now heres the problem, I would like to back up all my contacts etc then upgrade my phone but without voiding the warranty. Thing is I have not got a clue where to start.
I have a good basic knowledge of computers but reading the site talking about cooking ROM's etc baffles me a bit.
I need a basic step by step guide to doing this and the best upgrade without voiding the warranty if I can as I have 3-4 months contract left.
Any help would be greatly appreciated.
If you wanna upgrade to any official TMobile ROM for your device, just select one from either official site (TMobile support or HTC support, dunno how you receive support for your device) or you can find it over here: http://wiki.xda-developers.com/index.php?pagename=Diamond_Upgrades. If you scroll down on this page you will also find a direct link to Tmobile support.
If that's all you wanna do, then you're good to go as long as you follow the instructions of the RomUpdateUtility (RUU) that comes with the official ROM.
However, if you wanna unlock (which doesn't mean sim unlock) your phone to be able to flash (=upgrade) any ROM (custom, different language, different carrier etc etc), then prepare yourself for a serious piece of reading; everybody on this forum started this way, feeling overwhelmed with information and scared of bricking their phone and voiding warranty. Btw..these links are for GSM devices only. GSM is a device with a sim card, if you don't have a sim card then you have a CDMA device, and that's a differten story at some points.
This is a good way to start:
http://forum.xda-developers.com/showthread.php?t=400402
You have to realize that if you unlock your phone you always gonna void your warranty; luckily there's also a way back to restore to factory settings; more info can be found over here:
http://forum.xda-developers.com/showthread.php?t=537496
Before you start doing anything...write on a piece of paper:
- your actual SPL version
- your actual Radio version
- your actual ROM version
Google this forum to find the download links for this stuff and be sure you have those three (original) pieces (of software) stored and safe on your computer, to ensure you can always go back to factory settings.
Hope i gave you a start and good luck!
Oo.... Outlook express isn't the same as Outlook, To be able to sync your device via Activesync you have to have Outlook from Microsoft Office installed on your computer
Nirak said:
Oo.... Outlook express isn't the same as Outlook, To be able to sync your device via Activesync you have to have Outlook from Microsoft Office installed on your computer
Click to expand...
Click to collapse
Darn it, knew there would be something!
Thats great, thanks for your help.
BTW, do you think that the update will cure the receiving calls issue?
Novasport said:
BTW, do you think that the update will cure the receiving calls issue?
Click to expand...
Click to collapse
Honestly, i have no clue if upgrading would solve your problem; your problems might just as well be hardware related, i really can't say.
My first shot would be an official software update from Tmobile, that indeed you can easily perform yourself, and no warranty issue, cuz it's all official.
And if that wouldn't do the trick, well, if i would have your performance on my diamond i wouldn't hestitate to send it in for repair if it still has warranty. That would be my second shot, cuz i think either Tmobile or HTC will/must do some hard- and software testing before returning the device to you, and if they can't solve the problem via software upgrade they have to perform hardware repair as well.
Can't you get a temporary device from the service center? I still have a almost new Qtek 9100 here for you to borrow at no costs, but i'm not responsible for any back or shoulder damage you get from walking around with that thing

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