HiSense 65H6510G no boot

[howardc64]

Re: HiSense 65H6510G no boot

log boot mstar

Thanks! Mine didn't get very far haha... Looks like a bunch of key checks in the log.

[lotas]

Re: HiSense 65H6510G no boot

log boot mstar

[lotas]

Re: HiSense 65H6510G no boot

And what about the "CLK" signal?

[howardc64]

Re: HiSense 65H6510G no boot

This is when you solder to the eMMC via isp and power it with a programmer, and then the programmer does not always pull out its 3.3v, you have to connect additional power.
To remove the log, you only need Tx, Rx and GND and 3.3v does not need to be supplied from the uart adapter at all.

Ok I understand more now. Never experienced eMMC ISP Before.

I think @Diah is suggesting to use my USB TTL UART dongle to pull some kind of log from eMMC. I google for 1 hour and can not find any info. Any links or hints? I guess eMMC CMD/D0/GND must be connected to RX/TX/GND? And then run some tool (ISP app?) to ask for log?

[lotas]

Re: HiSense 65H6510G no boot

This is when you solder to the eMMC via isp and power it with a programmer, and then the programmer does not always pull out its 3.3v, you have to connect additional power.
To remove the log, you only need Tx, Rx and GND and 3.3v does not need to be supplied from the uart adapter at all.

[Diah]

Re: HiSense 65H6510G no boot

folks you are not going to power on ..the MB...

how MB after manufacturing. put it on programmer base... its is 3.3V level... if you didn't saw this in real then okay.

[howardc64]

Re: HiSense 65H6510G no boot

So 3.3v from usb - uart will not pull the 3.3v bus of the motherboard, the amperage is small.

Yes, furthermore, UART goes through SOC and SOC need 2x 1V rails to run CPU etc. and 1.5V for DRRAM, eMMC need 1.8v + 3.3v.

Probably can drive by external power supply 12V but then no difference from PSU power unless PSU 12V has problem. I think no reason to suspect PSU 12V. All rails have clean DC and 0V AC.

[lotas]

Re: HiSense 65H6510G no boot

So 3.3v from usb - uart will not pull the 3.3v bus of the motherboard, the amperage is small.

[howardc64]

Re: HiSense 65H6510G no boot

all these except MAC are licenses for Brand & specific Soc. all TV same Brand share the same LIC. there are no separated LIC. KEY will Generated according TV Model ESN

its the same to Android TV Box. Amlogic for example give each manufacture of brand LIC can be burned on all boxes.

ah ok, if license keys are public, then just need to get from another working HiSense I guess.

did you tried to have the MB solo and feed it 3.3V from yours TTL and see how the log will be

What do you mean by MB solo and feed 3.3v from TTL? What to disconnect and connect?

[Diah]

Re: HiSense 65H6510G no boot

USB<->TTL UART Dongle

did you tried to have the MB solo and feed it 3.3V from yours TTL and see how the log will be

[Diah]

Re: HiSense 65H6510G no boot

all these except MAC are licenses for Brand & specific Soc. all TV same Brand share the same LIC. there are no separated LIC. KEY will Generated according TV Model ESN

its the same to Android TV Box. Amlogic for example give each manufacture of brand LIC can be burned on all boxes.

[howardc64]

Re: HiSense 65H6510G no boot

there are no security keys at all.... the keys which should written within service menu and USB stick in case eMMC replace or blank MB installed
the keys are CI+ key in case on board there are CI+ socket
write MAC linkage
Write NETFLIX Key
write WIDEVINE Key
and HDCP 2.0 or 2.2

Interesting. But install new eMMC + new firmware and can not read old dead eMMC. Then what keys put in service menu?

Here is SOC's service manual section on keys

[Diah]

Re: HiSense 65H6510G no boot

HiSense eMMC replacement can not solve security keys

This eMMC seller is the one I contacted asking about HiSense eMMC and he said will lose HDMI and many streaming apps.

there are no security keys at all.... the keys which should written within service menu and USB stick in case eMMC replace or blank MB installed
the keys are CI+ key in case on board there are CI+ socket
write MAC linkage
Write NETFLIX Key
write WIDEVINE Key
and HDCP 2.0 or 2.2

[lotas]

Re: HiSense 65H6510G no boot

Sony mainly puts MediaTek's SOC.

[howardc64]

Re: HiSense 65H6510G no boot

One additional note on eMMC replacement to repair these Android TV

SONY eMMC replacement is possible

Looks like SONY XBR Android TVs also have frequent eMMC failures and possible to repair by replacing eMMC with new one that has boot code preflashed. Then use USB to install remaining firmware. There are many videos on youtube and a French company ( link ) that sells these eMMC with preflashed boot.

HiSense eMMC replacement can not solve security keys

This eMMC seller is the one I contacted asking about HiSense eMMC and he said will lose HDMI and many streaming apps.

Potential Differences?

HiSense SOC is MStar (Taiwan SOC maker) and SONY XBR is their own SOC (looks like X Reality PRO) SOC can include embedded flash ( probably more costly ) so presumably the SONY SOC is likely storing keys on SOC rather than eMMC.

====

Just a guess and wondering why pre-flashed eMMC seller sell SONY eMMC but not HiSense.

[howardc64]

Re: HiSense 65H6510G no boot

https://www.partitionwizard.com/part...mc-vs-ufs.html

Interesting, I've not been keeping up with flash memory IO spec. UFS is pretty standard IO speed evolution using higher transfer data rate technologies. DRAMs used these techniques awhile back and non volatile memory storage is now getting to this level.

But the memory block inside is still MLC/TLC/QLC/3D NAND flash with write wear limits. Here is some info

https://www.electronicspecifier.com/...bedded-storage

You can see they recognize the higher reliability needs of bootcode with pSLC. But I don't know the eMMC market segmentation and whether pSLC is more premium line that cheap TV manufacturers not willing to buy. Then there is Google reference platform, what kind of eMMC can they assume used by manufacturers and where to store the security keys? Natural path is towards lowest common denominator...

[nomoresonys]

Re: HiSense 65H6510G no boot

https://www.partitionwizard.com/part...mc-vs-ufs.html

[nomoresonys]

Re: HiSense 65H6510G no boot

Just seems like they are going in reverse for reliability and longevity, I have a sharp tv from 2007, is used for 12 hours a day every day since new. Never a problem with it, no eMMC in this tv.

[nomoresonys]

Re: HiSense 65H6510G no boot

Probably a conspiracy, they think nobody is bright enough to see that they have put a lot of time and energy into the science of having these tvs go bad just out of warranty. I bet there's some that don't want to improve these chips just to sell more tvs.

[lotas]

Re: HiSense 65H6510G no boot

And why does anyone need it, it’s not profitable for companies, the warranty (1-3 years) for these TVs has passed - eMMC has died, and the client either buys a new motherboard or runs to the store for a new TV.