I have a UK Nabi2 which I used Nabilab2 to install TWRP+root+google apps a while back. I needed to do the new two part OTA update, for warranty reasons, so went to install my original backup, but could not find it. I used Nabilab2full and did the stock install, which removed root and returned the device back to stock. (This also changed my nabi to a US version with no serial, FW 2.1.29. which I later found out). & at that point I still had TWRP.
I did the first two of three OTA updates (which worked), the third update crashed during install. I retried the OTA twice more but each time it crashed. The device lost TWRP after this.
Upon entering recovery with ON/Vol+ I now get <3e> recovery. Running the root.zip file from sd card fails (I assume as I am not in the correct mode or have a bad file?). The OTA updates I grabbed from the nabi wiki page (and the thread, see below) also fail.
My device does not show in fastboot. Adb sees it but when using the command, C:\adb reboot recovery, the Nabi reboots and goes to the dead android (pushing -/+ to get into) <3e> recovery, and adb at that point no longer sees the device. The nabi also disconnects once adb shell is executed. I can intsall .apk files via adb command but I still need root access to run TWRP backup manager. I can run the root.zip file via an apk installer, but when running SU it gives a message 'There is no superuser binary installed, and superSU cannot install it. This is a problem!' ...Is there another way can I install root and/or the recovery.img to the Nabi2?
(I have been following the thread here, http://forum.xda-developers.com/show...041224&page=10, as well as several hours worth of reading various adb, <3e> recovery, lost root etc q&a's in other places but cannot find an answer, or it's assumed that the adb reboot recovery command is working, which mine appears not to be).
Any help or pointers in the right direction would be very appreciated.