As posted in the EGL25BL subforum: (As evidenced on my pad....) If you insert an EXTERNAL TF card into the slot, and the device cannot read it, it may offer to FORMAT IT for you. DO NOT LET IT!!! It will NOT format the EXTERNAL TF slot, but the INTERNAL 'Local-disk' STORAGE INSTEAD!!! AFTER THAT, you will not get access to the EXTERNAL TF (cause it is a subfolder of the 'local')... It will require a FACTORY RESTORE in order to get it back!!! I think this is not true... I believe that the SETTINGS/DATA FORMAT will restore the internal storage to 'factory' folders,etc... and give back access to the ext-TF and USBs... but Im too chicknshyt to test it unless I HAVE TO !!! THIS IS TRUE FOR THE XL PRO 2 as well!!! 'Forewarned is fore-armed'... or four-legged! Dont say I didnt warn you!!!