Chosen Solution

  1. Phone suddenly starts to overheat.
  2. 1 SIM card stops working in it (works in another phone)
  3. Other SIM card works/detected but says: “DIALLING” until it “timed out” or eventually goes through.
  4. Battery then goes bad and swells.
  5. Same problem even when battery replaced, it just drain the battery to nothing - literally!

New battery needed. Try http://www.bluphoneparts.com/

Thank you very much! Just needed a confirmation. I tried other means for powering the phone and realized that it really needed new battery. The other SIMM also worked when added.