[Samsung Epic 4G Touch] dtr145r:
Super slow data speeds?

Poor voice coverage?

Try a custom PRL

Custom PRL files

if you live in an area where you only get 1x this mod will work for you

I use 0001.PRL attached at bottom. it works best for me.

Notice: Custom Prl's will force you to roam causing mostly all data to be roaming. if you use more that 2 gigs a month this hack may not be good for you as you may get booted off their network for to much roaming.

I put together a guide on how to manually change your prl on the epic touch. This will work with rooted and non rooted devices.

For windows users only.

First you need your MSL code.

1. go to the market and install terminal emulator

2. Type ‘’getprop ril.MSL’’ this command is case sensitive so make sure it’s typed correctly.

3. Take note of the 6 digit output number.

or

1. Call sprint and tell them you want your MSL number to do a data reset or some BS story like that. They will usually give it to you. If they don’t hang up and call back until you get someone that will.

2. Make sure you write down the number.

Now on to installing the software and drivers.

1. Download, and install the QPST application

2. Download, and install the Samsung drivers

3. Make sure USB debugging unchecked. Menu>settings>applications>development

4. On the dial pad dial ##8778# and select all. Click home

5. Plug in your device and let everything install.

6. Check the ‘’USB tethering’’ ox under menu>settings>wireless and networks>tethering. This should install a few things needed to create a com port.

7. Open up device manager on your computer. Check to see if you have a tab called ‘’Ports (COM & LPT)’’

8. Take note of what your com port number is. Should say ‘’ SAMSUNG mobile modem diagnostics serial port’’ Mine was 9 yours will most likely be different.

Now let’s change your PRL

1. Open up ‘’QPST Configurations’’ on your computer Start>All Programs> QPST> QPST Configuration.

2. Make sure you are on the ‘’ports’ tab and click ‘’add new port’’

3. Look for the port number that you got from device manager

4. If it’s not there uncheck ‘’ Show Serial and USB/QC Diagnostic ports only’’ if it still doesn’t show unplug usb and restart phone and computer.

5. After you add the correct comport click ok.

6. Now highlight the com port and click ‘’Start Clients” on the top of QPST and open Service programming.

7 .in the screen that opens you should see the phone name FFA6550-ZRF6500, the phone number should be wrong but that’s ok. Select it and click ok.

8. Click the ‘’Roam’’ tab and browse for the .PRL file you wish to load to your phone

9. Click write to phone. QPST will now ask you for the ‘’service programming code’’ this is where you type the MSL code

10. Your phone will automatically reboot and you should be on the PRL you flashed.

11. To check menu>settings>about phone> status check the PRL version. it should match the prl number that you flashed.

12. down load Netmonitor from the market this will tell you the carrier you are roaming on, in my case its sprint, and the network type, mine is EvDo rev.A! :-D

13. Don't forget to add a check to ''USB debugging'' in menu>settings>applications>development otherwise some applications like titanium back up wont work.

If this post helped you please hit the Thanks button

huge thanks to

Leviuqse, Techknowfile and oostah for their hard work!