Android Application Downgrade

APK_Downgrade.md

Android Application Downgrade

I'm using BakaReader EX (com.erakk.lnreader) as an example.

Instructions

1. Download desired version of your application, e.g.: https://github.com/calvinaquino/LNReader-Android/releases/download/1.1.34/BakaReader-EX-1.1.34.apk and copy the APK to your phone.

2. Download and install adb on your PC. Conveniently small package can be found here: http://forum.xda-developers.com/showthread.php?t=2588979

3. Download and install adb drivers for your phone, e.g.: http://developer.sonymobile.com/downloads/drivers/xperia-z1-compact-driver/

4. Invoke adb shell and run following command in it

    pm install -r -d /full/path/to/your.apk
   

   -r replaces existing application without removing data
   -d allows downgrading

Reason

I had to downgrade BakaReader EX, because 1.1.35 changed DB schema, yet I have already downloaded unread stuff, which is no longer available on Baka-Tsuki, so I'm not performing any data updates.

Just for the record, the error I was getting in 1.1.35 is:

class android.database.sqlite.SQLiteException:
no such table: page_categories (code 1): , while compiling:
select * from page_categories where page = ?