MobileRead Forums - View Single Post - PRS+ "Invalid Type" error

kartu · 08-05-2011, 03:46 AM

vans

I don't think there is a hardware problem, it's just it's very easy to get IM corrupt, but not as easy to fix it. (I get it frequrently during development, since I have to change "Sony cached" files on IM). I normally do 2 restarts with format or checkdisk with my 300/505. Connected to USB during boot, so that reader UI doesn't start / scan IM.

The root of the failing installs is most likely 1.2.00.18050 firmware. (I don't remember, if we had that before)

Recommended way to install PRS+ on 505 is to "downgrade" to US version using standard sony updater (you can find it renamed to "Uninstaller" on the project site) that installs 1.1. 0.18040.

REMEMBER to save dumps from failed PRS+ installs, so that you could revert back to 1.2.00.18050, if you won't like PRS+.

08-05-2011, 03:46 AM	#16
kartu PRS+ author Posts: 1,637 Karma: 2446233 Join Date: Dec 2007 Device: Sony PRS-300, 505, 600, 650, 950	vans I don't think there is a hardware problem, it's just it's very easy to get IM corrupt, but not as easy to fix it. (I get it frequrently during development, since I have to change "Sony cached" files on IM). I normally do 2 restarts with format or checkdisk with my 300/505. Connected to USB during boot, so that reader UI doesn't start / scan IM. The root of the failing installs is most likely 1.2.00.18050 firmware. (I don't remember, if we had that before) Recommended way to install PRS+ on 505 is to "downgrade" to US version using standard sony updater (you can find it renamed to "Uninstaller" on the project site) that installs 1.1. 0.18040. REMEMBER to save dumps from failed PRS+ installs, so that you could revert back to 1.2.00.18050, if you won't like PRS+. Last edited by kartu; 08-05-2011 at 03:50 AM.