When exactly is the lto.dat file getting removed for you guys? Mine was indeed missing just now after having put it there last night. So I put another copy of it in the system/etc file, (for my own convenience if I need to keep replacing it) and then used Root Explorer to remove all the Write permissions. I then copied that altered file and placed it in system/etc/gps. I ran GPS Status which took 20 seconds to lock (lying flat). Then I rebooted, and the lto.dat files are still where I put them. Ran GPS Status again (standing vertical) and it locked in 5 seconds. Checked once again and the lto.dat files are still there. I'll monitor the situation and report back if they disappear.
Also, I don't know if you folks are aware of something else I learned from another source. Standing up the A500 makes the GPS lock in much faster. For some reason the GPS doesn't like working as well when the tablet is horizontal.
I have a lot of problems with my tablet's GPS compass requiring recalibration pretty much every time I use GPS Status. It may be a result of the computers and peripherals nearby where I leave it to charge overnight. But my phones have historically had the same problem, and they charged in a different room. Or, it could just be me. Early versions of digital watch displays used to go blank on me when I wore one (even the first day). If I left the watch sit it would come back. For over 20 years I have worn analog watches because of this.
- Zoandroid -
Acer Iconia A500 - rooted JB ROM
VZW Samsung GS III rooted + unlocked JB Stock ROM complements of open1your1eyes0
Wife's Kindle Fire - Stock