[P3400 ROM Development] krazy_about_technology:
Problem Resolutions:

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1. SMS/ MMS Account missing on first boot!!!

Solution: It happens for some strange reasons that i haven't been able to find but there is a quick workaround for it.

1. Open Messaging, and close it without doing anything.

2. Go to the Messaging tab of Manilla 2D and Press either the Create New SMS button or select New from the menu.

3. A new sms window will come at this time. Cancel the Message. SMS and MMS account would have been created by now.

4. Duplicate Installation of Audio Manager in \Program File taking up phone memory unnecessarily!!

Solution: Some people might not even notice it. But if you have read this thread carefully, you will notice that you have less phone memory that what is quoted in Post #1. Actually this is a duplicate installation of audio manager created for some unknown reason. i have done all the usual checks but can't find any particular solution for this that i can cook with the ROM. But you can delete the whole Audio Manager folder safely from \Program File without any problem. Audio Manager runs directly from \Windows Folder and the shortcut in Start Menu > Programs also points to that. This is just useless.

3. Audio Booster doesn't allows entering Equalizer settings and checking the equalizer checkbox + Missing Audiobooster Option in Audio Managers Menu

Solution: This is not a problem and happens with some versions of AudioBooster and Audio Manager, if their version numbers are different. To resolve it :-

Just start AudioManager, let it build its library a little and then play a song for minimum 5 seconds. After that start AudioBooster, adjust one of its sliders a little. Then soft reset your phone, and both the problems will be solved. What happens is, they create their respective registry settings on first start and after that everything is fine. In Original ROMs from HTC, since on first boot the Customization applications runs, it sets up the registry itself. But even with that, you have to reboot your device anyway. :)

4. Audio Manager and Windows Media Player stop playback if power button is pressed and phone enters suspend mode.

Solution: First of all, Thanks to Shaunak.it for finding the solution.

This problem occurs in some specific builds of gene. It can occur in old gene and new gene both. So here is what it is like:

Normally, If you press the power button while music is playing, Audio Manager and Windows Media Player stop playback. But this only happens when headset is not connected. If headset is connected, the playback wont stop.This is a standard behavior and not a problem. But on some p3400 and P3400i phones, the playback stops no-matter headset is connected or not. I was not able to find the solution for this problem as it was not happening with me. But a friend of ours from this forum, shaunak.it solved it as he was having this annoyance. Here's what you have to do:

Open the Task Manager Advanced. Click the down faced arrow to the right of the screen and select Regedit from the menu. Now in the folder tree on the upper half of the screen, Navigate to :

For AudioManager:

HKLM > Software > HTC > Audio Manager > Config

In the lower section, look for a value called ENTER_SUSPEND. If its there, double tap on it to edit it and enter 0 as new value. Otherwise, in an empty area in the same place, tap and hold for a while for a context menu to appear. Select New > Value. Select REG_DWORD as Value Type. In the name field, type ENTER_SUSPEND. Click the Set Data button and enter 1 as the value. Click Ok and then again Ok.

For Windows Media Player

HKLM > System > Current Control Set > Control > Power > State > Suspend. Again in the lower left corner look for a value named WAV, if its there, double tap to edit it and then enter 0 as its new value. Otherwise, in an empty area in the same place, tap and hold for a while for a context menu to appear. Select New > Value. Select REG_DWORD as Value Type. In the name field, type WAV. Click the Set Data button and enter 0 as the value. Click Ok and then again Ok.

This will solve your problem. :)