My 9900 had an endless rebooting loop,and a Jvm 545 error after that. fixed it by reloading theOs and that resulted in my antenna refusing to turn on, when I turn on it turns off after a few seconds without getting any signal at all. Just installed the 474 version and this as well did not help. What else can I try?
thnx!
I had the same issue. I let my 9900 battery run down so far that the radio turned off. When I then charged it up the phone turned off on me. I was lucky, I didn't brick it; the OS still loaded okay however from that moment on the radio didn't work properly. I can get data over wifi fine but I intermittently can't get data over 2G. Although the phone shows 3 or 4 bars of GPRS or EDGE I can't make or receive calls, apps suing data just hang. It sometimes works for 10 minutes and then stops again.
I have tried my SIM in my old 9700 and it works fine so it's not that. I have tried in multiple locations and it is the same. I have wiped my device and reinstalled the OS and that didn't work (I tried .474. and the stock vodafone .296). I have re-inserted the SIM and that makes no difference. In the end I called Vodafone and it is being exchanged on Tuesday. They were very quick to offer the exchange and didn't even get me to check possible solutions. I wonder if the number of people having issues with this phone has made them more willing to offer an exchange.
I hope you get your issue sorted but it sounds very similar to my problem with this device. My only solution was to return the phone.
