1.Copy the update.ZIP to tf card or your TS7 directly, no need to uncompress.
2.Power off the TS7, or remove the battery of your phone to make sure power off.
3.Then press power & volume+ at the same time, a yellow exclamation mark would appear, then press power again
4.Choose wipe date/factory reset by using volume+&-, press home button= enter, it may take 5s before next step appear
5.choose yes -delete all date.
6. then choose wipe cache partition
7. apply update from sdcard, and choose update, flashing begins. it will take 2-5 mins.
after finished, it will be back to R mode menu,choose reboot system now, everything is ok.