Delete PRL on iPhone 4s

[Tequiero328]

Hello.im new on the forum and I'm newbie with CDMA phones.so I have an iPhone 4s who was locked on Sprint.i made official unlock for the GSM modem but the problem is that many times have "no service" or one dot on signal display without work the calling.i inhabit in Europe so I don't need the CDMA modem.i have read if I delete the PRL file and some other files/folders from the phone it will work complete and first the GSM modem.as I have read now start the CDMA modem first and then the GSM modem.the phone is JB and iOS 8.1.2.
I tried many times to find the PRL file somewhere in the phone "wireless" folder but nothing.
Any help?

[rich hathaway]

your prl is in the carrier bundle your phone is using,so if its a sprint phone its in the sprint bundle and also in its symlink,its also in the operator bundle and the default carrier bundle.
but what you are doing wont make it work on gsm if it was sprint originally.

[Tequiero328]

Thank you for your quick response.now work on local GSM networks but many times jump from GSM ti CDMA.yes originally was on Sprint.
i try with ifile but don't find it.need other file explorer?
how it called exactly the file who need to delete?