Acer Liquid Z5 Z150 Stock Rom 1.014.00 Emea Gen1 En Us International 4.2.2 Jb

0. Make sure the phone is powered off (e.g. take off and put on the battery).
1. Copy update.XXXXXXXX.zip to external SD card, insert the SD card into the phone.
2. Long press \'Power button\' + “Vol_Up button” until Select Boot mode shows
3. In menu, you could press “Vol_up button”to move the arrow to [Recovery Mode]; then press “Vol_Down button” to enter.
4. The android robot mark with a \"!\" icon shows on Screen==> please press power button
5. Use Vol_Down to move highlight to Choose \"apply update from external sdcard\",
then press \"Vol_Up\"
6. Choose the SD card update image (e.g. update_Acer_AV052_Z150_1.001.00_EMEA_GEN1.zip).
7. Phone shall start the upgrading. It will back to menu mode when process is done.
8. Please choose \'wipe data/factory reset\' & \'Yes\'.
9. Choose \'Reboot system now\' to reboot the phone.