Default [Q] Blu Life Play L100a

How do you update a BLU life play that has cwm? I tried downloading the update using the wireless update but when I select "update now" it goes through and I get an error message: cant mount storage/sdcard0/
I also tried selecting "update later" and flashing the using the recovery mode but it doesnt work.
I also found an in xda but it doesnt work also. Got some different error message.