Can you help . Possible bad sectors tm800

[thechairman]

ive just bought a brand new tm800 jtagged unit. It came preflashed with the latest IQ image. Everything was working last night but very sticky on channel change. Slight delay stuttter when going on to a channel. It eventually randomly kept going on to a blank screen then the cogs would appear and then back onto the channel. Making the unit awfully annoying as it happened every 2 minutes or so. I restarted enigma and it the box was back to normal and it started happening again. Through process of elimination i eventually thought it might be the image. so i've put and older image on 150711 dw.

when flashing i noticed some errors with bad blocks. Does this mean i have a faulty unit or is this normal .
#Root Erasing
flash size: 55836672, erase block size 16384 Skipping bad block at 0x01bac000 Skipping bad block at 0x01c64000 Skipping bad block at 0x01ea0000 Skipping bad block at 0x022b4000 Skipping bad block at 0x0271c000 Skipping bad block at 0x027b8000 Skipping bad block at 0x028a0000 Skipping bad block at 0x03290000
#Root Writing
partition /dev/mtd4 skip size(0x401040), total (0x3540000) bad block at 1bac000, skip 1 block(s) from 1bac000 bad block at 1c64000, skip 1 block(s) from 1c64000 bad block at 1ea0000, skip 1 block(s) from 1ea0000 bad block at 22b4000, skip 1 block(s) from 22b4000 bad block at 271c000, skip 1 block(s) from 271c000 bad block at 27b8000, skip 1 block(s) from 27b8000 bad block at 28a0000, skip 1 block(s) from 28a0000 bad block at 3290000, skip 1 block(s) from 3290000
PLEASE REBOOT YOUR RECEIVER~^^

thanks for your help

[jimux]

It is not unusual for a nand flash chip to have one or two bad blocks, but that does seem excessive in a new box. Regarding your 'dreaded cogs' it is worth noting that the IQ images are bloated and far too big. Linux does not like file systems that are more than about 85% full, even read-only ones. Some of the third party images are considerably smaller and run more efficiently. It would also help to create and mount a swapfile, preferably on a usb stick.