Chosen Solution
i have replaced the sims card & the phone indicates “no sims card” . same indication when i try a second new sims card??????????????
Start with a new tray (7$ on amazon) and see if that works. if not, continue on below. likely a Sim Processing Circuit failure. The sim is processed through a circuit consisting of many board level components. i would look for a datasheet that gives you the required readings for the components involved, and find where it begins to fail. before going through that work though, i would suggest replacing the SIM reader. There is a possibility the reader is not connecting with the SIM.
