Virtuous Flame Just Released Custom Firmware 6.35 PRO-A3. It features fixes listed below.
[!] fix GAME CPU frequency
[!] fixed number of comics, such as the goddess of sideways
[!] fixed under the 0×80020148 error OFW
[!] fix some of the re-setting the packed illegal version of the game led to crash
[+] Add OPNSSMP automatically read features
Another update from Virtuous Flame, he has released Custom Firmware 6.35 PRO-A2, this introduces a standby option to the VSH Menu. And fixes large memory support. Apparently in the other releases we still didn’t have all the available ram to use on Slim and Go models. Still no pops (PSX) support, I guess we just have to wait for 6.20 TN-D.
Custom Firmware 6.35 PRO-A2 changelog (Translated via Google)
[!] fix large memory support, and now you can unlock up to 51M of memory, you can stand in a normal home-made software
[!] fix ACG MHP3 v4 Chinese Version
[+] to add in the VSH MENU standby SUSPEND DEVICE
[!] fix order of ISO
[!] fix large memory support, and now we can unlock the memory 55M
[!] can not run after the fix into the UMD ISO
[!] fix USB Device can only be enabled once
[+] Merge HEN and installation procedures can be directly installed in the OFW
[+] Add Tekken and Soul Calibur patch
[+] Add key D9161AF0
[+] Add in the RESET VSH MENU
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Source: pspslimhacks