[Solved] NAND K9GAG08U0E-SCB0 - does it make sense to solder the used one?

Due to the fact that I ran out of new cubes and the customers were pressing, I desoldered the old one, on which the TV was restarting with the logo, then deleted and programmed again.
After soldering the cube, everything works fine, but the question is how long, are these bones a problem with themselves, or do they just sometimes "lose" the contents, such as SPI memories in Vestels, or do they physically damage?

You may ask what are you programming K9GAG08U0E-SCB0?

Programming of the K9GAG08U0E-SCB0.

I am asking because I would like to buy. It's a bit late to buy a NAND programmer, but maybe it's still worth the investment. I am looking for confirmation that Proman is also good at K9GAG08U0E.
On Ali I found:
NAND ProMan Professional Programmer TL866 PLUS Programmer

Note: After we verify, this programmer not support chip K9GAG08U0E,
description of supporting it on aliexpress are wrong.

Well, but maybe you will kindly comment on the topic ...
thank you

I have a different programmer, but there is a problem with K9GAG08U0E. That's why I'm looking for some NAND programmer. In the TL866 memory support list, K9GAG08U0E is among many others.
All in all, are you sure the TL866 will not program K9GAG08UE correctly?


PS
I didn't notice that you edited in the meantime.
Sorry for littering the topic.

Since 1.04. ends
The proof Link_ ProMan / TL86 Unstable reading data from NAND Samsung K9GAG08U0E

how do you buy TL866 plus (TL866A +), you will forget the problem (necks)
- NOT TL866cs / and TL866a

TL86-PLUS-ProMan-Professional-Programmer-Repair-Tool

* for anything from $ 110-140

lisek wrote:

when you buy TL866 plus (TL866A +), you will forget about the problem (necks)

Thanks for the suggestions, but I would like to ask something about.
I repeat, after soldering the TV cube, it flashes elegantly, all functions work properly, it is upgraded, etc., i.e. the cube has been programmed correctly.
The question is whether to mount used memory, not a new one, there are any chances for a longer TV work, is it doomed to failure in advance?

Screenshot from the program:

Certainly the "old" one will perform better than the new ones from China (about 4.5 $ / item, minimum purchase 5pcs).
It is tested, "burned in", ...
Almost all new from BB, depending on lot 5-10.

Reliability of semiconductor elements is an alternative of many factors, related to each other,
Apart from the fact that "power is in silicon" there is also "Si dark side"> greater failure rate

lisek wrote:

Certainly the "old" one will do better than the new ones from China

And just such a firm and bold answer I expected, my neighbor, and for that "like" , thank you.
And basically, I agree with this thesis, for 5 "brand new" items there is 1 or two without BB, the rest is sometimes taken over by the programmer, provided that the number of BBs does not exceed its capabilities.
So the question is whether it makes sense to buy the "new"?

You did not buy a new one because you were "lucky" that the old one survived!
That's the whole philosophy.
* as F. Kiepski used to say

Quote:

There are things in the world that physiologists have not dreamed of.

lisek wrote:

because you were lucky that the old one survived!

Or maybe it is due to a total change in the technique of bone emergence? So, semi-warm
Before that, they all rained down.
It may turn out that we unnecessarily exchange for new ...

In my one known case the "old" K9GAG08U0E-SCB0
after programming with the programmer, it worked for a year, a few other cases still work for months.

GanCegall wrote:

Or maybe it is due to a total change in the technique of bone emergence? So, semi-warm

A suitable tip in a soldering iron, lots of tin. Or an old transformer soldering iron with a suitably made tip. NAND can be soldered many times in this way. Theoretically possible problem with electrostatics, but I did not damage the circuit. For convenience, you can raise the temperature of the plate with the preheater.

Adewag wrote:

GanCegall wrote:

Or maybe it is due to a total change in the technique of bone emergence? So, semi-warm

A suitable tip in a soldering iron, lots of tin. Or an old transformer soldering iron with a suitably made tip. NAND can be soldered many times in this way.

With such skill and sense of the equipment - the HOT-AIR can also successfully solder the same system several times.

ppieciak wrote:

With such skill and sense of the equipment - the HOT-AIR can also successfully solder the same system several times.

If someone likes a little adrealinki, why not

ppieciak wrote:

You can also successfully solder a few with HOT-AIR

In my case, these cubes fell from the booty, each one without exception.

GanCegall wrote:

ppieciak wrote:

You can also successfully solder a few with HOT-AIR

In my case, these cubes fell from the booty, each one without exception.

Are the consequences of such soldering immediate or do they reveal themselves after some time?

I have sold more than one cube with HA and apart from a few cases of memory re-soldered after programming (actually with an unreliable programmer then) there were no problems.

ppieciak wrote:

Are the consequences of such soldering immediate or do they reveal themselves after some time?

New cube, without BB, surprisingly, without the famous 2073! works perfectly, and after desoldering with a hotem, it cannot be programmed ...

For best results, you need a native chip with a native firmware dump. The correct programmer (inexpensive "Easy-NAND Tiny Tools" & "UFPI") can do everything himself and correctly. New K9GAG08U0E do not always give 100% results.
Soldering into a TV programmed with an RT809H chip is the same as soldering a programmed purchased chip. The BB table is corrupted and now this chip can only be used at random. There is a lot of BB in these chips, but there is little information in the firmware. Either she does not get on the BB, or she is not very significant and the TV will work. But! This chip is designed to work with Smart and USB. And this means that some information will be constantly recorded in it. Due to the lack of a correct table BB, the information recorded during the operation will fall on the BB and the TV will break again. TVs are often brought in 6-12 months after the repair and it is already impossible to help a person, because K9GAG08U0E was programmed with the help of RT809H, ProMan or TNM or the purchased one was installed. Such a TV will not be brought back to you - the guarantee has passed, but there is no trust in you.
“Easy-NAND Tiny Tools” with new software can fully restore the performance of this TV platform. He adds the necessary BAD BLOKS to the table and recalculates the ECC.

You can solder a used one .