[Device Reviews and Information] oeriel:
Done this 2 files. After flashing first: unsecured-C7F9-recovery-V2.zip

Here what happened - same as before. Recovery worked, options, navigation etc.

c:\adba>adb devices
* daemon not running. starting it now on port 5037 *
* daemon started successfully *
List of devices attached
0123456789012345678901234567890 device

c:\adba>adb reboot fastboot

c:\adba>fastboot devices
0123456789012345 fastboot

c:\adba>fastboot flash recovery recovery-02-unsecured-C7F9-recovery-V2.img
(bootloader) recovery partition type: raw
target reported max download size of 1052770304 bytes
sending 'recovery' (11844 KB)...
(bootloader) Ready to receive: 0x00b91000 size of data
OKAY [ 0.410s]
writing 'recovery'...
(bootloader) Flashing partition: recovery
OKAY [ 1.060s]
finished. total time: 1.480s

c:\adba>adb reboot recovery
error: device not found

c:\adba>adb root
error: device not found

c:\adba>fastboot devices
0123456789012345 fastboot

c:\adba>

After flashing second: C7F9-kernel-vi7-ramdisk.zip

Some new things here. adb root gives comment: adbd is already running as root

adb disable-verity: verity not enabled - ENG build

And cannot go to recovery - no options, no navigation, only "dead" Android robot with exclamation and Chineese info (which I don't understand) - see attachement.

And process:

c:\adba>adb reboot fastboot

c:\adba>fastboot devices
0123456789012345 fastboot

c:\adba>fastboot flash recovery recovery-03-C7F9-kernel-vi7-ramdisk.img
(bootloader) recovery partition type: raw
target reported max download size of 1052770304 bytes
sending 'recovery' (11992 KB)...
(bootloader) Ready to receive: 0x00bb6000 size of data
OKAY [ 0.420s]
writing 'recovery'...
(bootloader) Flashing partition: recovery
OKAY [ 1.070s]
finished. total time: 1.490s

c:\adba>adb root
error: device not found

c:\adba>fastboot reboot
rebooting...

finished. total time: -0.000s

c:\adba>adb reboot recovery

c:\adba>adb root
adbd is already running as root

c:\adba>adb remount
remount of system failed: Success
remount failed

c:\adba>adb shell
- exec '/system/bin/sh' failed: No such file or directory (2) -

c:\adba>adb disable-verity
verity not enabled - ENG build

c:\adba>

Also - I've been today at market where is other tablet using the same configuration, but other company, other logo. Kiano:

model number: SlimTab7_3GR

Baseband version: CTE_MNT_SF_3GR_MRD_LPOP_MR1_1526.02

Kernel: 3.14.0 (as mine Teclast) and more info: softteam@pdd-build #1. Thu Jul 30 15:54:45 CST 2015

Build number: Sf3gr_mrd6_p2-userdebug 5.1.1. LMY47V eng.softteam.20150730.152121 release-keys

I know that is different model (looks same, parameters same, like Chuvi Vi7 or Vido T99), but on build number there is info "userdebug", and also it have in options: OEM unlocking. I don't have this option in my Teclast X70R.

Two questions:

If I flash first recovery, it will back to live as previous, instead of "dead" robot?

I've downloaded your files, but using this tool "FlashTool_E2" I don't see my tablet. Tried on 3 computers, and in stationary even tried connect on back USB ports, from motherboard. No connection. What I have to make it working - fastboot or other state?