[Verizon Samsung Galaxy Note II] toskabab:
I have been flashing different roms made for different carriers and I keep coming across people with the same issues in every thread. I thought it would be a good idea to have a list of common problems people seem to be having while flashing along with their solutions. This will not only be an easier/faster way for the flasher to solve his problem, but a way to prevent unnecessary clutter in rom threads with questions that have been asked repeatedly.

Feel free to post any issues you com across and/or any solutions you have to offer. This post will be updated frequently to help you guys out.

Before I get started I just want to stress the importance of doing a clean wipe before flashing a new rom. I have used this analogy in another thread, but I think of roms as women. If you want a flawless transition from one to another without any drama, they must never find out about each other. This means erase all proof of the previous one's existence. Everybody's 4g/gps issues would be non-existent if they would wipe their phones properly. When switching roms, apart from the normal wipe it is also necessary to delete the "Android" folder in your internal/external storage. If you like to play it safe, wiping them both after a backup gives you best results. This is because conflicting data stored on your card from the previous rom can screw with the new one. For those of you with sdcards bigger than my bank account who don't have that much time to spare, just deleting the android folder should be enough.

Problem

My GPS doesn't work.

Solution 1: Most likely you flashed a new rom on top of another one. As said above just wiping is not enough. GPS information is stored on your internal/external storage. This can be erased by either wiping it clean before flashing the new rom or simply deleting the "android" folder.

Solution 2: If that doesn't work (which it should), many people have had success with an app called GPS Status and Toolbox from the appstore. After downloading use the settings menu to release GPS data and fix a new lock.

Solution 3: This one's my least favorite, but some have flashed an old rom that previously had GPS working, got a GPS lock, and then reflashed the new rom.

Problem

My 4g doesn't work.

Solution 1: Always check the OP in the rom thread. Find out if the rom is based on a modem other than the one you have.

Solution 2: If you are using a rom created for another carrier there are two ways you can go about fixing 4g. The easiest way is to install scott's verizon patch HERE. The harder way is to make the required changes yourself which you can learn how to do HERE.

Problem

My apps are acting weird after I restore a backup.

Solution: Most likely you are restoring from Titanium Backup. It is a known fact that restoring data using Titanium Backup can cause a number of issues. Restore only the apks of the apps you need. Restoring data (never restore old system data on a new rom!) will only cause conflicts. If you absolutely have to keep data for a particular app restore only those that you need one by one if you are sure that no system data is being brought along with it. It may be more tedious, but it will keep you from having issues.

Problem

I keep getting a text message from "6250" saying "VZWNMN: 1" or something of that nature.

Solution: This is an issue with backup assistant sending repeated queries to your phone via text message. To stop this from occuring log into your account at www.verizonwireless.com and disable backup assistant completely.

More issues and simple fixes which will be posted as I find the time. But these are the top 4 I come across about 20 times a day so they are the ones that readily stand out in my mind.