Could be messed up user partition.
I would try booting using rescue image, to get access to /home in order to check it out - and backup.
If you backed up, or doesn’t care of any data (photos etc), reflash Emmc also (You WILL loose whatever is installed besides factory apps)

Flashing emmc fixed 'Total storage'.
Telephony doesn't work (IMEI is listed), possibly because I used the wrong emmc file; China?: CF121574_DFL61_HARMATTAN_40.2012.13-7.PRC_EMMC_PRC.bin

Anyone have a link for 299's (?) emmc file?
DF5035B2_DFL61_HARMATTAN_40.2012.21-3.SEAP.16_EMMC_SEAP.bin

edit: Nokiafirm link is dead

Mike, after flashing eMMC (and firmware) you will need to restore telephony by flashing the chinese CMT only?

Yes, didn't forget that. No errors.

sudo flasher -F '/home/michael/Desktop/china/DFL61_HARMATTAN_40.2012.21-3_PR_LEGACY_003-OEM1-958_ARM.bin' --flash-only=cmt -f -R

Will go through the whole 'Deadly CMT' thread again.

Edit:
Acquired phone from seller. When last used years ago, telephony worked fine. Seller tested it, telephony was not working. I acquired the phone, tested telephony, cleaned SIM & sandwiched paper: nothing.

Before any flashing:

michael@michael-G41MT-ES2L ~ $ sudo flasher -i
flasher 3.12.1 (Oct 5 2011) Harmattan
WARNING: This tool is intended for professional use only. Using it may result
in permanently damaging your device or losing the warranty.

Suitable USB interface (bootloader/phonet) not found, waiting...
USB device found at bus 001, device address 011.
Device identifier: 35166########37 (SN: N/A)
Found device RM-696, hardware revision 1601
NOLO version 2.3.6
Version of 'sw-release': DFL61_HARMATTAN_40.2012.21-3_PR_003
Success

Removed SIM card -> Flashed 299 (md5'd) -> errors with CMT -> flashed 003 CMT (md5'd) -> flashed Chinese eMMC (correct type?) -> Flashed 003 CMT

Now -i outputs :

michael@michael-G41MT-ES2L ~ $ sudo flasher -i
flasher 3.12.1 (Oct 5 2011) Harmattan
WARNING: This tool is intended for professional use only. Using it may result
in permanently damaging your device or losing the warranty.

USB device found at bus 001, device address 030.
Device identifier: 35166########37 (SN: N/A)
Raw data transfer EP found at EP2.
Ping attempt 1 (250 ms)
Server application: 1.7.2
Found product RM-696 rev. 1601
Server implements softupd protocol version 1.8
Success

Telephony, still not working.

After flashing eMMC you will first need to flash firmware again (or do it both together in one step). After that the chinese CMT only. Right?

Thanks, gave that a go.... no telephony (emergency calls only)

edit: Tried a different eMMC file: DFL61_HARMATTAN_40.2012.13-7.EURASIA_EMMC_EURASIA.bin
Still no good