[GUIDE] How To Use QPST to INCREASE the volume on the Evo 3D

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This appears to be a solution for some people and for other it doesnt seem to work. Not really sure why but it works on my Evo 3D and it works on various others in this thread. This IS NOT a fix all for everyone. All I can tell you is to try it and see.

Many thanks to slayer69 for this. Basically just a copy/paste of his thread with some other changes for the low volume on the EVO 3D. I take no responsibility for your actions if you brick it or blow your speaker!!!!

Here is the new process for INCREASING the volume on your EVO 3D. Enjoy!!! (NO ROOT REQUIRED)


1. Install HTC Sync if you haven't already.
2. Use the CDMA Method posted Here to get your MSL. Thanks techwerkz - Or Call Sprint.
3. Download QPST: http://www.x-drivers.com/catalog/fla...pst/12051.html
4. Install QPST software
5. Put phone into Diag mode: dial ##diag#
6. Start QPST service programming. If your phone is in diag mode you will see it listed here.
7. Click Read from phone
8. Enter your SPC number (the one obtained from step number 2)
9. Click the Sounds tab.
10. Change each level to whatever you want it to be. Level 4 is the loudest (try not to blow your speaker, thnx!).
11. Write to phone. (You may see some Read Only Errors. This is normal)
12. Reboot phone and you will hear the difference.

To find the COM port your HTC Modem is using:
Go into the control panel and then device manager. Look for the HTC Modem. Right click on the modem and select properties. Select the "Advanced Tab" then "Advanced Port Settings" Button. Com port will be listed there. (Windows 7 Instructions)

If you have Windows 7 x64 and are having issues with the HTC Modem drivers follow these Instructions.

If you're having problems with the above process see, slayer69's thread here

Wow thank you I have noticed my volume has been a little low compared to my og

Sent from my PG86100 using XDA Premium App

Originally Posted by t3project

Many thanks to slayer69 for this. Basically just a copy/paste of his thread with some other changes for the low volume on the EVO 3D. I take no responsibility for your actions if you brick it or blow your speaker!!!!

Here is the new process for INCREASING the volume on your EVO 3D. Enjoy!!! (NO ROOT REQUIRED)


1. Install HTC Sync if you haven't already.
2. Use the CDMA Method posted Here to get your MSL. Thanks techwerkz - Or Call Sprint.
3. Download QPST: http://www.x-drivers.com/catalog/fla...pst/12051.html
4. Install QPST software
5. Put phone into Diag mode: dial ##diag#
6. Start QPST service programming. If your phone is in diag mode you will see it listed here.
7. Click Read from phone
8. Enter your SPC number (the one obtained from step number 2)
9. Click the Sounds tab.
10. Change each level to whatever you want it to be. Level 4 is the loudest (try not to blow your speaker, thnx!).
11. Write to phone. (You may see some Read Only Errors. This is normal)
12. Reboot phone and you will see the new banner.

If you're having problems with the above process see, slayer69's thread here

I would like to know whether QPST works with winodws 7 X64. It keeps crashing when I click on the service programing, please advise.

Originally Posted by urcboss07

I would like to know whether QPST works with winodws 7 X64. It keeps crashing when I click on the service programing, please advise.

yes, see slayer's thread for proof. or you just have a bad install. uninstall, remove all registry entries referring to qpst, reinstall and retry.

Does HTC Sync have to see the phone then run QPST?

QPST link is a four oh four. :/

Originally Posted by ZachPA

QPST link is a four oh four. :/

http://www.x-drivers.com/catalog/fla...pst/12051.html

This is the link from slayers thread

Originally Posted by ZachPA

QPST link is a four oh four. :/

EDIT: OP.....change the URL in the op...it didn't copy the whole URL when you copied from my post.

Is there a linux QPST?

Originally Posted by bwcorvus

Is there a linux QPST?

Not that I know of.