[MDA, XDA, 1010 Software Upgrading] ericksd:
First post here, so please go easy on me.

I have been spending alot of time on this site as of late and would like to thank all for this very helpful information.

I have done a fair amount of searching on the lack of sound from my Wallaby, but non of the problems others have had seem to be quite what I am experiencing. I will try not to be too long winded, but...

I had been experimenting with various ROMs from LumpiStefans ROMkitchen and had success in doing so.

The last ROM I used was 2003 SE (then manually loaded trial of voice command). All seemed to work fine, until I saw some information on radio stack 6.25.02 upgrade while visiting uspocketpcphone.com. Followed the posted instructions, but the upgrade terminated about 75% of the way trough. Upon cold restart the device did not have a radio and began behaving very erraticly.

Spent the rest of the day getting special ROM 1.1 back onto the device and trying to get the stack back to 4.16. After hours of failure (1%), I decided to try another stack (3.23 I think). This worked and allowed me the functionality to connect via active sync and flash a more updated ROM and radio stack (I did not have an SD card writer at the time, but do now).

This sort of brings me to the subject of this post (yea, I know...long winded). Upon getting the new ROM installed and checking functionality, I noticed that the sound did not work.

Now at this point, I must say that the unit had been dropped about 3 months ago, but had been functional apart from a portion of the screen bleeding and sometimes blinking due to a loose connection inside. Somewhere in the midst of all the ROM and radio stack action, the screen was blinking and driving me crazy, so I decided to take the unit apart and see if I could locate the loose connection. I did re-seat the ribbon cable to the LCD, which seemed to help somewhat.

Now...I can't figure out if the lack of sound is due to the stack upgrade, or if I damaged something in the unit when I had it apart.

In troubleshooting the unit, I have discovered the following.

The internal mic and speaker work fine when using the phone.

The headset mic and earbuds also work fine when using the phone.

The internal speaker also works when speakerphone mode is selected while in a phone call.

This would seem to indicate that it is not hardware (at least not in the mic and speaker circuits).

No other sounds come from the unit speaker or external earbuds when playing wav or mp3 files etc. The unit gives no indication that a codec or any other bit of software is missing.

Something worthy of note...when playing a sound file, I can hear a slight click and hiss if I put my ear up to the unit speaker (or use the earbuds).

I have also tried the diagnostics from the bootloader (5.15). When testing the playback, I can only hear a slight click and hiss from the speaker (once for right and once for left).

I'm just wondering if maybe the bit of hardware dedicated to decoding MP3 and WAV files is somehow damaged. Sorry, I can't claim to know how the sound makes its way to the speaker.

Is there a chance that there is a bit of code in the bootloader that could be corrupt?

Can I reload the bootlaoder?

Sorry for taking so much time, but I wanted whoever cares to read this to have as much information as possible.

Dan