install twrp, back up the original oeminf, copy the original oeminf backup to the pc and replace the files with the new oeminf dual sim, go back to on the tlm and do a restore of oeminf it will take over the new oeminf yes, shut down the tlm and extract the file from the dual sim firmware to a folder named dload on an SD card and insert into the tlm, make the installation method 3 buttons.If you use the ilde11 files. PS: save the original oeminf folder on the PC if they want to go back to the firmware stock
Sorry for my english but I'm portuguese and I used the translator
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