Had just overclocked my 451 to 851 a fantastic job, thanks to everyone.
So I had a go at my sons 411s.
Backed up EPROM - Backed up Bios - wrote a patched copy of my EPROM and flashed with 811 Bios HS0Q.exe after using flashfix and all hacks available. Worked great
on DVD+R at 8x and CD-R but there was no improvement with DVD-R or DVD-RW or DVD+RW
or even multisession CD-RW.
I reflashed with Ltnflash to HSTQ.bin from dhc014.rpc1.org - some improvement so I
used speed hack on it and reflashed. I may have left a DVD rom in the drive and now
the drive will not recognise any disc except a blank DVD+R in Nero.
I have tried everything I have read about in the Forums mtkflash all Ver. 3 computers -
all programs report sucsess but all I get is “Please Insert A Disk in Drive D” after it tries to read it for 1 minute.
Reloading my backups get me back to a 411 - I have used /m in mtkflash and update boot code in ltnflash but no joy.
Where is/was my Unique Calibration Data stored ? Is there a memory area other than the EPROM and Bios? When should /M and “Update Boot Code” be used.
Sorry for long post, Please Help