Philips 55pfl5766/f7 Software crashes

[x_orange90_x]

I do not know the exact temp. needed, i don't have a professional station, it seems ok, but depends on the air flow and duration, 1 minute and high flow it's not an half reflow, without a deoxidizing paste the already bad balls can maybe loose more contact, what i would do now is a complete reflow with flux (and move), that hot air as you used cannot destroy a chip for me... you can contact a reballing lab and send to them only the removed emmc to reball it, receive it back and solder it back, or buy a new emmc and send both of them to a repair lab that makes a copy, then you solder back the new chip, but bad balls could maybe corrupt some files so is a risk..

So you think I broke more connections rather than fixing them?

I can give it another shot but I don't think flux is really an option because this chip sits practically flush on the PCB. Maybe I can put paste around it and use WARM air to push it under the chip before using HOT air to reflow...?

[Davi.p]

Yes, i see sometimes emmc chips are almost touching the board, this means balls are very very microscopic, then oxydizing is very easy, is it possible you blow too much air pressure and balls squeezed? If it is so, neither a new reflow attempt will fix things.. the options are the ones said..

[x_orange90_x]

Yes, i see sometimes emmc chips are almost touching the board, this means balls are very very microscopic, then oxydizing is very easy, is it possible you blow too much air pressure and balls squeezed? If it is so, neither a new reflow attempt will fix things.. the options are the ones said..

I had the air flow set pretty low, only around 40% MAYBE. If it were high enough for that to happen I think I would've physically moved the chip out of place which I did not.

Side question.. If I end up buying a replacement board, can I use the same board model but from a 43"? I know the short answer is yes because they are the same series with exact same board number, but it's possible that it needs firmware from the 55" to work properly. As far as I can see there is no firmware available for download, so if it won't be plug and play it at least switchable in service menu then I won't buy it.

Both boards are model BAD780G0201 2
My model TV is 55PFL5766/F7 and the donor would come from a 43PFL5766/F7. Both are natively 4k UHD, so I'd expect them to both have the same resolution by default.

[Davi.p]

aren't there any sticker with codes? a sticker code overtakes on pcb fixed print
Many years ago i attempted to reflow a processor of the Philips series pflx008 with the very common problem at processor balls, it does not succeed cause it didn't move, the tv was most of the time working before and never booting after, i attemped also a reflow from bottom adding flux and the chip moved, but no boot again, the thing might be studied deeper.. there aren't proof it is the emmc at fault, it can be cpu or ram, that receives some heat when blowing another chip..

[x_orange90_x]

aren't there any sticker with codes? a sticker code overtakes on pcb fixed print

Nothing on the top. I don't recall if there was one on the bottom. I can check next time I'm pulling it off to attempt reflow again.

[Davi.p]

Surely the silkscreen is not enough, i think that you must try to read the QR code...
i don't know if it worth the pain but if the back of tv has the common Philips option codes on the sticker you can try to get the board and edit the codes in the SAM (service menu)

[x_orange90_x]

Surely the silkscreen is not enough, i think that you must try to read the QR code...
i don't know if it worth the pain but if the back of tv has the common Philips option codes on the sticker you can try to get the board and edit the codes in the SAM (service menu)

I've seen in the case of TCLs, when switching boards from different sizes you can select from a list of models in the service menu. Maybe this would be similar? I don't even know if these have a service menu or how to enter it. Also, the sticker on the back actually says Funai and not Philips

[Davi.p]

So it is not Philips at all.. it's a joke..

[lotas]

So it is not Philips at all.. it's a joke..

Why is it a joke, there are /F7 models.

[Diah]

Why is it a joke, there are /F7 models.

don't bother yours self.. you warrant of heating the eMMC... if some one know the dferrent between eMMC and NAND should know the heating over 90° the big enemy to kill eMMC.. ( at factory used pasta and infared to place eMMC on boards nop ball or refllow or half refflow LOL
replacement MB need only panel ID to register it on the replacement NVM.

[x_orange90_x]

don't bother yours self.. you warrant of heating the eMMC... if some one know the dferrent between eMMC and NAND should know the heating over 90° the big enemy to kill eMMC.. ( at factory used pasta and infared to place eMMC on boards nop ball or refllow or half refflow LOL
replacement MB need only panel ID to register it on the replacement NVM.

I don't know of any physical difference between the chips. From what I read eMMC and NAND are the same thing, with the difference being eMMC is self controlling whereas NAND is controlled by the processor through the OS.

If it's dead it's dead. I knew full well going into it that it may not work. As I stated a few times, Galaxy Note 4 apparently had eMMC that COULD be fixed by reflowing. At this point I'm prepared to buy a replacement board, I'm just not certain if the 43" model I'm looking at will be plug and play. The thing that makes me believe it SHOULD be that simple is the fact that both tvs are 4k and it's the resolution that's generally the main difference between different sizes of the same series.

Edit: the chip on this board doesn't even have a heat sink so maybe that's why they are more prone to failure. 90c is pretty low tolerance for an IC so this design choice was a big oversight imo.

[Diah]

I don't know of any physical difference between the chips. From what I read eMMC and NAND are the same thing, with the difference being eMMC is self controlling whereas NAND is controlled by the processor through the OS.

If it's dead it's dead. I knew full well going into it that it may not work. As I stated a few times, Galaxy Note 4 apparently had eMMC that COULD be fixed by reflowing. At this point I'm prepared to buy a replacement board, I'm just not certain if the 43" model I'm looking at will be plug and play. The thing that makes me believe it SHOULD be that simple is the fact that both tvs are 4k and it's the resolution that's generally the main difference between different sizes of the same series.

Edit: the chip on this board doesn't even have a heat sink so maybe that's why they are more prone to failure. 90c is pretty low tolerance for an IC so this design choice was a big oversight imo.

this wrong to compare mobile device to TV.. mobile eMMC are UFI which working under limited current.. TV are different.
on other hand they don't put heatsink not because of it could heat up... it will not as its not operation sector. its just place to save ( bank data )... freezing what you did faced i explained tr first point i start wrote here.. -- you just took the wrong bet horse.

[Davi.p]

i meant selling a Funai with brand Philips at side it is not serious, from the board type i think it's not a Philips at all, i don't know Funai rules for board replacement, 4k it is not the only requisite, different models/submodels can use different brands of panel, different lvds bit sequence, thus you can end with image shapes ok but scrambled colours, or even different sync/frequency.. it's a lottery, i guess even software it 's not Philips, service mode different.. who knows? This is not an European market model i think..

[x_orange90_x]

i meant selling a Funai with brand Philips at side it is not serious, from the board type i think it's not a Philips at all, i don't know Funai rules for board replacement, 4k it is not the only requisite, different models/submodels can use different brands of panel, different lvds bit sequence, thus you can end with image shapes ok but scrambled colours, or even different sync/frequency.. it's a lottery, i guess even software it 's not Philips, service mode different.. who knows? This is not an European market model i think..

I'm getting annoyed searching for a compatible board for this tv. The 43PFL5766/F7 board I found is the EXACT same model number and is only $32... But I found a board from a 55PFL5766/F7 with an ME7 serial number for $38 on eBay. Problem is, my tv is an ME1 serial number. The boards also look identical, but they do have a different model number (one ends in 2 and the other ends in 3). I have no idea what the difference is between ME1 and ME7..

I don't know which board is MOST likely to work 😫

The leaflets for the 43" and 55" both show exactly the same specs for everything except physical screen size, right down to panel resolution and supported resolutions... I'm really thinking the 43" board should be directly compatible

[Davi.p]

Can you explain better? For serial number what means? Normally only model numbers are important.. plus, model number is the one silkscreened? That is not so important for me, a subsequent release it's normal especially if there is no version naming separed, for me i would bet for the same panel size board

[x_orange90_x]

Can you explain better? For serial number what means? Normally only model numbers are important.. plus, model number is the one silkscreened? That is not so important for me, a subsequent release it's normal especially if there is no version naming separed, for me i would bet for the same panel size board

According to ShopJimmy there are 7 versions of this model, with each of them having serial numbers beginning with ME1 all the way through ME7 (which is actually a 55PFL5766/F7D).

I compared the ME1 and ME7 versions on their site and both list the same panel number, which matches my panel number. So that being said I have found a match and will be ordering it.

[Davi.p]

I think in many brands, like Samsung, the different models of parts are dummy, they vary with the only intention to screw people up, there is no absolutely need for 40 model numbers per each main board hardware o panel hardware.. it's a never ending robbery here.. i would prefer main.board for same size tv, but if you feel sure.. ok

[x_orange90_x]

I think in many brands, like Samsung, the different models of parts are dummy, they vary with the only intention to screw people up, there is no absolutely need for 40 model numbers per each main board hardware o panel hardware.. it's a never ending robbery here.. i would prefer main.board for same size tv, but if you feel sure.. ok

It is for the same size. The only difference is the serial number.

[lotas]

It is for the same size. The only difference is the serial number.

The problem with the image may appear not only with the corresponding diagonal of the panel, but there may also be different panel manufacturers (BOE, LG, Samsung, AUO, CSOT) and each panel will have its own settings in the firmware.

[x_orange90_x]

The problem with the image may appear not only with the corresponding diagonal of the panel, but there may also be different panel manufacturers (BOE, LG, Samsung, AUO, CSOT) and each panel will have its own settings in the firmware.

Ya that could be the issue if I were replacing with the incorrect size.. but I have a 55" and ordered a board from another 55"... With the difference being the serial number of the tv itself.

I verified that the panel the donor board came from is the same exact panel number as mine.