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1. FLASH ONE METROPCS FIRMWARE FROM THE SUPPORT
2. SELECT 'WRITE PARTITION' AND FROM THE LIST THAT APPEARS SELECT 'PROTECT1' -> DOUBLE CLICK IT AND SELECT
MEMORY_DUMP_ZTE Z820_1c11c9c0b831d461fd24a1957b644602_METROPCS_CONVERT.osp
3. SELECT 'SIM_LOCK REMOVE' AND PRESS 'DO JOB'
4. ENJOY A FULLY CONVERTED Z820 WITH IMEI