I tried the latest LolliGPE
again (GPE_5.0.1_MULTI_DH_030915). I also flashed the firmware for "ALL CARRIERS (No radios)". I updated to super CID & T-Mobile MID. Everything seemed working, except the signal was weaker than Verizon. I thought this may be normal, due to weaker T-Mobile signal in my area. But when I visited my friend in another city, I got no signal at all, while my friend's T-Mobile phone got very good signal. I suspected I need to update my radio firmware. I flashed TMO_Radio_baseband+1.16.21331931.LA24G. After that, not only I got no signal, but my phone could only stay up for less a minute before rebooting itself. Fortunately I backed up the radio firmware before I flashed it. After I flashed back the old firmware, my phone started working again. To my surprise, my phone worked better than before. I could get 1 or 2 bars stronger signal. I could get signal where I couldn’t before. Is this pure luck?