Philips 60PFL8708S/12 - QFU1.2E LA - Error code 53

[Maalobs]

Re: Philips 60PFL8708S/12 - QFU1.2E LA - Error code 53

I have had the BGA reflowed now, without stencil.
When I asked the guy who was going to do the work which of the three stencil variants I should choose, he offered to do the work without a stencil instead.
To just do it by hand, he fixes a lot of PS4s that way he says.
I wonder why he sent me looking for stencils if he doesn't need them, but he did the reflow for me for free, so I guess it's fine then.
By the way, the Ebay-seller on the link above, he also has the processors for sale if anyone needs them.
Presumably he ships them "pre-balled" even, maybe ask him if you need a processor.

The TV works after the reflow!
There is a massive amount of data from TXD-SERVICE at boot-up now, both with and without SDM enabled.
There's so much even that the UART apparently overflows the buffer and after a few seconds the serial output seems bitshifted.

I first started the TV without the heatsink attached, just for a few seconds before I unplugged the power again.
The Fusion processor became very hot!
Don't run the TV without the heatsink attached!

With the heatsink in place, I was able to operate the TV and enter the service menus.
It's already running the latest version so no upgrade was needed.
I made USB backups of all the settings from SAM, and also took the CSM-backup and CSM-extended dump for good measure, as well as the channel settings which can also be backed up to USB.

The reflow guy pointed out to me that there are two heatsink mounting holes diagonally across the Fusion chip at 55mm distance (it's actually 54.6mm to be specific), and that it is a standard form factor:


There are heatsinks available in that form factor, both with and without fan:
https://www.google.com/search?tbm=is...eatsink+54.6mm
Most of them seem to be pretty low profile, but something like this looks appropriate:


There will be some Dremel-related field surgery applied to the back chassis, similar to what Alpengeist did.

I also want to do my own backup of the NAND-content at this time, so I desoldered the NAND TSOP48 with the hot air station.
First I taped the surroundings with Kapton and added some flux to the pins, then I used the smallest nozzle at 400C.
It was very quick work, less than 30 seconds:


However, it turns out that the Micron MT29F8G08ABABA chip is not currently supported by the XGecu TL866II Plus.
The chip passed the "pin detection", but the programmer only supports the chip series up to MT29F4, where the last "4" signifies 4 Gbit size.
The Device ID from the chip comes back as 0x2C38 in the programmer software.
I sent an email to XGecu about it, maybe they'll add support in a future release.

As for now, I'll see tomorrow if the reflow guy has a more advanced programmer and can dump the chip for me.
Preferably I would had wanted to replace the NAND-chip right away because of the warnings during boot, but I couldn't find new chips in stock anywhere and one place listed 16 weeks as lead time.
So I'll just run this chip until it fails, and deal with the replacement if and when that time comes.

[Diah]

Re: Philips 60PFL8708S/12 - QFU1.2E LA - Error code 53

I won't attempt playing around with my own dinky hot air gun, I'll let a professional handle it so I'll have a real chance of getting a lasting fix.

come on even if we use the Korean in room infrared grill plate it will be more than professional

[Maalobs]

Re: Philips 60PFL8708S/12 - QFU1.2E LA - Error code 53

I've found a matching stencil now, so BGA reflow is the next step.
I won't attempt playing around with my own dinky hot air gun, I'll let a professional handle it so I'll have a real chance of getting a lasting fix.

[Diah]

Re: Philips 60PFL8708S/12 - QFU1.2E LA - Error code 53

This situation is strange, my tv was working most of the times, only few percent of the tries it did not boot, but not at warm CPU, sometimes with cold sometimes with warm CPU.. this drives out of the road...

this chassis of Fillips only one things caused MB the BGA. reflow fusion enough. use hot air gun as i said and you will be fine

[Davi.p]

Re: Philips 60PFL8708S/12 - QFU1.2E LA - Error code 53

This situation is strange, my tv was working most of the times, only few percent of the tries it did not boot, but not at warm CPU, sometimes with cold sometimes with warm CPU.. this drives out of the road...

[Diah]

Re: Philips 60PFL8708S/12 - QFU1.2E LA - Error code 53

guys don't play or change any with NAND. just reflow fusion CPU. even with normal hot air gun can be done. consider only the heat on the round of the CPU only and put heat plaster on it and other component around. to avoid surface component fly out. from both side up and down side.
if you changed or rewrite any data to NAND , even if your reflow correct will not show any change to you so you will be confuse. also do reflow with original NAND

[Davi.p]

Re: Philips 60PFL8708S/12 - QFU1.2E LA - Error code 53

Yes, i've found on Italian forum a thread where a QFU1.1e la (6007 series) was bring back to life with a reflow, unfortunately on mine this was the first attempt i've done in the far 2017 with the result that no more booting when before it booted most of the times..

[Maalobs]

Re: Philips 60PFL8708S/12 - QFU1.2E LA - Error code 53

That Polish NAND-dump has some funny content.
Apparently browser-cache content from the TV apps is persisted on one of the filesystems in the NAND, there are a lot of Polish descriptions of various movies in there.

The next step for me is to first have a professional reflow done on the BGA, or reballing even.
The shop asked me to find a stencil for the chip, so that's what I'm looking for now.

That's how herr Alpengeist solved the exact same problem, his TV even stopped booting on the exact same character as mine:
https://alpengeist-tvrepair.blogspot...fu-12-cpu.html
This Polish NAND-dump will come in handy if the TV still kernel panics when mounting the filesystems after the BGA reflow.
With this dump I might get the TV to boot so far that I can flash a new autorun.upg on the TV.

When I'm that far, I can replace the worn out NAND-chip and copy the contents manually.
If you need an English language dump, I can save a copy.
I'll probably save the SPI Flash and EEPROM as well, just to be safe.

[Maalobs]

Re: Philips 60PFL8708S/12 - QFU1.2E LA - Error code 53

Oh, then I misunderstood the Google-translation of the Polish message.
Thanks!

[Davi.p]

Re: Philips 60PFL8708S/12 - QFU1.2E LA - Error code 53

- FILE 1 -
- FILE 2 -
- FILE 3 -
- FILE 4 -
- FILE 5 -

[Davi.p]

Re: Philips 60PFL8708S/12 - QFU1.2E LA - Error code 53

No problem to download that rar file for me, no need any point, i'm uploading it to a web space, but wait beause it's slow loading..

[Maalobs]

Re: Philips 60PFL8708S/12 - QFU1.2E LA - Error code 53

That Polish forum has a points system where you have to earn points to download files.
That's a lot of points for so many files.

I called around to some local TV repair shops today, nobody is doing reflowing, they just replace boards.
The general message I got was that I shouldn't buy Philips brand and that boards for these models are not available anymore.

I also contacted the official service vendor for Philips in Sweden and asked them if I can buy either a refurbished or a new SSB from them, or a pre-programmed NAND-chip, or a NAND-memory dump.
We'll see what they say, this company has a very poor consumer reputation in Sweden, but maybe they'll surprise me.
I can easily buy a new Micron chip, the only thing that eludes me there is the NAND content.

I found a one-man phone repair shop who has reflow capability, but he is specialized on phones so he asked for a stencil for this chip so he can do a proper reballing.

Does anyone know what this package type is called?

Here is a picture of the underside of the Fusion P120:

The outer edge of the outer square is 30x30 points.
The inner edge of the outer square is 18x18 points.
The outer edge of the inner square is 12x12 points.
788 points in total.
I don't know what the pitch is.

There are a lot of stencils on offer on Ebay and Ali, but I can't find the specific one for this type.
It's probably easier if I knew the name of the package type.

[Davi.p]

Re: Philips 60PFL8708S/12 - QFU1.2E LA - Error code 53

Registering seems to be easy but i cannot receive confirmation email..

[Davi.p]

Re: Philips 60PFL8708S/12 - QFU1.2E LA - Error code 53

but apparently it's a multi-volume archive

Sob! not good.. there's another site that offers all the .rar parts of the same dump:
https://www.elektroda.pl/rtvforum/to....html#15969068
I don't know if the registering is easy..

The "Option codes", are they the eight sets of five-digit codes on the rear label?

Yes, i think that the firmwares of different models of the same chassis is about the same, after there are different settings stored in eeprom.. and spi if you say right.. maybe if you write the different model's nand memory you don't lost the RF remote's settings but after an update maybe yes...
For the czech site i remember that it lists the wrong models for the chassis type, therefore QFU1.2E_LA have nothing to deal with 47pfl6007 and others.. i have emailed them but no responses after many days..

[Maalobs]

Re: Philips 60PFL8708S/12 - QFU1.2E LA - Error code 53

I have investigated every single regulator and mosfet on the underside of the SSB, and they are all OK.
So there are no other complicating factors, besides what the NAND complains about and the possible BGA problem.

I pulled off the heatsink from the Fusion chip, these are the markings on it:


I guess I need a stencil for that chip if I'm doing a proper reflow, and there are stencils to buy online.
But what's the name of that chip form factor?
I couldn't find a datasheet for the chip, the company is going tits up:
https://www.sigmadesigns.com/
Just generally heating the chip and hoping to reball, is that a good idea?

I have downloaded that rar-file from the Romanian forum, but apparently it's a multi-volume archive, and there is no second part offered in the thread:

C:\temp>rar x PHILIP_1-electronicforum.ro.RAR

RAR 5.70 x64  Copyright (c) 1993-2019 Alexander Roshal  25 Feb 2019

Extracting from PHILIP_1-electronicforum.ro.RAR

Extracting Philips_46PFL8008S12_QFU1.2E LA_NAND.bin         99%
Cannot find volume PHILIP_2-electronicforum.ro.RAR
Philips_46PFL8008S12_QFU1.2E LA_NAND.bin - checksum error
Total errors: 1

C:\temp>

Did you manage to download an intact archive?
If you did, I must have been given a corrupt file.

If I start flashing in firmware for the wrong TV model here, I need to understand what I'm getting myself into.
From the block diagram on page 57 in the service manual, I can deduce that there are NVM settings stored both in the EEPROM and in the SPI Flash, so maybe it's safe to replace the NAND, unless the linux-system detects that it is in a new system and resets the NVM-values.
I guess I should take copies of these memories if I want to make sure I don't lose factory calibration against this particular panel?

The "Option codes", are they the eight sets of five-digit codes on the rear label?
I attached a photo of the label in my original post.

If I don't get anywhere with this, I guess I'll have to buy a NAND-chip from that Czech webshop, and to be safe, let some local repair shop with reflow tools do the BGA reflow.
Worst case, I'd have to replace the SSB, and I don't know how to deal with the alignments in that case since I can't boot the current linux-system and backup the current settings.

[Davi.p]

Re: Philips 60PFL8708S/12 - QFU1.2E LA - Error code 53

OK hear well me.. in this link:
-- LINK --
You can easily register and in 3 minutes you can download NAND dump for 46PFL8008S, then you can flash a memory and put it on the board, i guess there's no problem of compatibility high enough to prevent boot up, as an user of a forum told me, that has swapped 2 boards of different model same chassis.. then you don't boot first normally but you force an update for the right model, then you can boot up and go service mode (SAM) and do a full reset, if tv doesn't boot or boot with no image then try to clean the eeprom memory with a short on pin 5,6 or a eeprom programmer job, then try to boot. I hope you'll find it useful, if it will work i will soon order a PEB-1 expansion for my RT809F programmer and do the same job.. bye..

PS: after SAM reset don't forget to edit in SAM the Option codes on the rear label..

[diif]

Re: Philips 60PFL8708S/12 - QFU1.2E LA - Error code 53

Maybe there are two problems here:
1.
Something is causing the TV to freeze mid boot, but after I had pulled the SSB off the glue I managed to glitch it into booting past the freeze once.
Possible causes; bad power or reflow required?

2.
That one successful boot exposed another possible problem with corrupt data in the NAND Flash.
Still haven't found a dumpfile of the NAND memory, so this is untestable at the moment.

The readout shows the NAND is worn out and clearly struggling. It needs replacing.

[Davi.p]

Re: Philips 60PFL8708S/12 - QFU1.2E LA - Error code 53

Sorry, i've misunderstanded and thought that you had bought the remote and got an output, but that was a quoting of a blog.. just for information i've used a remote from a little older Philips TV.
I want to thank you very much because you're doing the big work and save me to move my fat ass and do the tests you done, after reading the last log i'm pretty convinced that the fault is at the nand flash, i was hard suspecting that after the previous post and i had already contacted an ebay seller for a replacement NAND flash W/program stored, but me too i want to do read the logs from mine, even because it's the first time.
I ask you because i have some trouble reading well all posts, then you have succesfully booted the tv once before?

[mmartell]

Re: Philips 60PFL8708S/12 - QFU1.2E LA - Error code 53

You say you don't want to reflow the processsor but have you heated it ? This is a common failure point in all kinds of sets and will no doubt give different errors sending you down a possible rabbit hole that isn't there.

I would recommend to heat it good with a hair dryer so any iffy joint expands enough to allow the set to boot properly, if that's the problem.

[Maalobs]

Re: Philips 60PFL8708S/12 - QFU1.2E LA - Error code 53

Maybe there are two problems here:
1.
Something is causing the TV to freeze mid boot, but after I had pulled the SSB off the glue I managed to glitch it into booting past the freeze once.
Possible causes; bad power or reflow required?

2.
That one successful boot exposed another possible problem with corrupt data in the NAND Flash.
Still haven't found a dumpfile of the NAND memory, so this is untestable at the moment.