Guest liaquata Posted November 23, 2012 Report Share Posted November 23, 2012 Hi, Hope some of the clever folks on here can help with this, here is the story - 1. Bought a Huawei G300 from tesco, got a sim unlock code from vodaphone, unlocked phone and worked fine with giffgaff. 2. Few weeks later, phone developed bubble in screen, sent to tesco for repair, they sent it back repaired but said they had to change the main board which meant I now had a new IMEI (so the phone was locked again). 3. Got unlock code from vodaphone for new IMEI but it failed to unlock, then got unlock code off ebay (which was the same code but also had unlock block code as well. 4. Unlock code still didint work and after multiple attempts phone now asks for "sim lock BLOCK" code, i have tried to enter the lock unblock code provided by ebay seller but this is unsuccessfull too. 5. So now, even if I put voda sim back in the phone it still asks for "sim lock BLOCK" code, hence the phone is not usable at all either with voda or giffgaff. Any ideas or suggestion on how I could recover from this state would be appreciated? Link to comment Share on other sites More sharing options...
Guest fuzzyy Posted November 23, 2012 Report Share Posted November 23, 2012 Take it into a shop? Link to comment Share on other sites More sharing options...
Guest tcpaulh Posted November 23, 2012 Report Share Posted November 23, 2012 Have you tried the free sim unlock method? Link to comment Share on other sites More sharing options...
Guest MrPuddington Posted November 24, 2012 Report Share Posted November 24, 2012 Have you tried the free sim unlock method? http://www.modaco.co...lock-your-g300/ That needs a stock ROM, too. A stock installer to zero the IMEI, and a stock ROM to get into the service menu. I would have thought that the unlock code is handled by the baseband, but it may also need support only available in the stock ROM. Link to comment Share on other sites More sharing options...
Guest liaquata Posted November 24, 2012 Report Share Posted November 24, 2012 I am running stock ICS, upgraded OTA. You mentioned baseband, is it possible if I downgrade back to stock GB (which presumably would be a different baseband) the official unlock codes might work ? Link to comment Share on other sites More sharing options...
Guest tcpaulh Posted November 26, 2012 Report Share Posted November 26, 2012 That needs a stock ROM, too. A stock installer to zero the IMEI, and a stock ROM to get into the service menu. I would have thought that the unlock code is handled by the baseband, but it may also need support only available in the stock ROM. What's your point? Link to comment Share on other sites More sharing options...
Guest accyuklad Posted November 29, 2012 Report Share Posted November 29, 2012 i suggest you put the phone back to stock then take it back to store and say you getting error and hopefully you get a replacement i brought mine yesturday new on vodafone and when i put my o2 simcard in it worked straight away with no code Link to comment Share on other sites More sharing options...
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