New answers tagged data-connection
Figured it out. I installed a third-party dialler app (Truedialler), and I was able to dial *#*#4636#*#* and change the band and preferred network mode.
I think your apps are being killed by the System or a task Killer. I solve the same problem yesterday by Downloading this App: Watchdog Task Manager Lite It will prevent the apps you add into its "whitelist" from being killed.
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