The problem doesn't always arise but still pretty often... It happens often on some roms and not very often on other roms (I've only had this issue twice on cm11 but get it almost every other call on SlimKat). I've attached a logcat from SlimKat while outgoing call dropps signal. Hope any of you can shed a light on my issue. I looks like a hardware problem but i don't understand why it works on sense roms.
Edit: I first had this issue after I OTA'd to 4.18.401.2 (with new hboot 1.72). It's a shame HTC denies us s-off. Otherwise i would just go back to hboot 1.39 but i'm hoping i can somehow fix this because I really love AOSP roms and i really don't like Sense.
Edit2: This only happens on outgoing calls. Never on incoming calls.
Edit3:Took out the sim card. Polished it a bit. Put sim card back. Now in 10 test calls i never had signal dropping. I cut the sim card myself and now i guess it's time to go and get a proper microsim.
Edit4:Still had a signal drop on outgoing call.
Will report back after i get a new sim...