Horrendous GPS on AOSP while fine on TW

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So I have been on AOSP for a good bit but somewhere along the way a few weeks ago my GPS started going from great to bad.

Normally it would find a lock in under 10seconds outside, and pretty quick inside too, about the same depending on the building and such.

Recently it has gotten really bad, taking a minute or more to find my location and even then the location is pretty bad.

On TouchWiz(CleanROM), my GPS is great and locks in about 5 seconds with about 2-4 less satilltes from the total on GPS Status app such as 19/22 Sat's. It also has a very low error range, like under 15ft.

On AOSP(CM, Liquid, Carbon), I am getting awful locks taking 1-3 minutes to lock. Even then it is only 5/17 sats, dunno how it even has a lock but the lock is horrible, showing 100+Ft of error.

This is all happening off of clean wipes, doing nothing but booting up and downloading GPS Status app.

I also tried doing the "Wipe GPS data" in the GPS app with no luck.

Re: Horrendous GPS on AOSP while fine on TW

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This is a common issue. TW comes with a qualcomm gps server stock that is very accurate, while many custom Roms come with a very general one (such as all of north america) or none at all. This sever provides the a-gps data to help the phone find the satelites. Download FasterFix from the play store, this allows you to specify your gps server as well as see what it is currently set to. If you're in the US, try selecting 'custom' and enter us.pool.ntp.org for good results. Stock TW uses gpsonextra.net which I have not tried on AOSP, but may still work well. Alternately, you could google some local ntp servers in your area (universities are good ones) for a hyper accurate fix, however this may or may not create issues traveling far from home. If you're feeling like tweaking, you can even modify your gps.conf file for multiple sources. Just be sure to make a backup first. YMMV

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