Orange nexus problems

[gryfon99]

hope someone can shed some light on my prob. I’ve got a orange nexus that was working great it was popping all cards that I put in it in under 20min some it only took about 15sec but I decided to try a a86 and I adjusted the pot without thinking to take a reading of the value it was set to and now I can't open some cards it opens a boc card in about 5min but I have tried a bod and a rom10 a82 with no look I still have a bod in it now and it's been running for 4 days I have tried the pot settings 2.2k, 2.3k, 2.4k and 2.5k as some of you have suggested but still no look I have every thing else setup the same as before when it was working i.e. same flash winexporer setting

anybody got any ideas?