Downgrade to 4.2.2 and keep data / WhatsApp screwed / WhatsApp ART problem -24 error
Hi. I screwed my WhatsApp after I tried ART and tried reinstalling the app, as it didn't work. Now I can't reinstall it and neither use it by any ways.
The reason I want to downgrade is that I can root and then update to 4.4 again, and fix the error.
Is there any way to so and keep data and apps? I tried fastbooting back to it but it keeps on a bootloop.
This is from WhatsApp FAQ:
If you attempted to re-install WhatsApp in ART, your /data/data/ directory may have a latent com.whatsapp folder left behind from the failed install that will prevent you from installing WhatsApp again. Android does not have any UI exposed to resolve this issue. Currently the only known way to remove this file is to either delete the file (only possible if your phone is rooted), or to reset your device to factory defaults.