Hii all there, i installed a custom rom for i9505 based on android os 4.2.2. The problem is i use repair box with UART cables for some operations on the phone and i cannot change the UART option PDA/MODEM with the code *#7284# and this was working perfectly on 4.3 and 4.4.2. Why the codes are no working? (*#0808# and *#9090# too) Thank you

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