NOKIA SELFDESTRUCTION

I have two NOKIA 3510i - nearly same age of TWO YEARS!

One device refuses to operate the other one STILL works.
I disassembled both devices to compare them physically.

Then I put the printed circuit of the working device together with the
remaining parts of the not working device - which works!

that means the prited circuit board, which has no other movable parts than
the switch on button, is defect. (the switch on button works, I have
checked that also!)

I carefully checked the two PCB's and found a different labling on the
defect PCB which lists "3-3 HFP".

The working device lists a "4-1 HFP" - this is the only difference. All
electrical parts are identical, I even looked into the shielded
compartments containing addition chips in SMD technique.

So what does "3-3 HFP" mean? Is it a count down quartal for
selfdestruction? Do I have still one quarter for the other device? I will
report that later..

Btw. this is not my first NOKIA handy going down in an algorithmic way
after 2 years! It always looks like decay but for me this is a programmed
down!

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Hello

> Btw. this is not my first NOKIA handy going down in an algorithmic way
> after 2 years! It always looks like decay but for me this is a programmed
> down!

I can not report the same thing. In fact, after every 2 Years i get a Mobile
Upgrade for cheap for my contract with o2 germany. the old nokia devices
all still work. even my 6150 is fine, as is the 5130 or the 5510 an all the
other good old models. even my 3510i is doing his job.

the only nokia that died are:

1. my 8210 one year after a red blue led change
2. my 3310 one year after a red blue led change
3. my 7110 because of theft :O(((

chris

Christoph Kögler schrieb:

> I can not report the same thing.

Bitte nicht die Trolle füttern. Der Typ nervt auch in a.c.n. herum.

Viele Grüße
OP

Noki A <[email protected]> wrote in
news:[email protected]:

>
> I have two NOKIA 3510i - nearly same age of TWO YEARS!
>
> One device refuses to operate the other one STILL works.
> I disassembled both devices to compare them physically.
>
> Then I put the printed circuit of the working device together with the
> remaining parts of the not working device - which works!
>
> that means the prited circuit board, which has no other movable parts
> than the switch on button, is defect. (the switch on button works, I
> have checked that also!)
>
> I carefully checked the two PCB's and found a different labling on the
> defect PCB which lists "3-3 HFP".
>
> The working device lists a "4-1 HFP" - this is the only difference.
> All electrical parts are identical, I even looked into the shielded
> compartments containing addition chips in SMD technique.
>
> So what does "3-3 HFP" mean? Is it a count down quartal for
> selfdestruction? Do I have still one quarter for the other device? I
> will report that later..
>
> Btw. this is not my first NOKIA handy going down in an algorithmic way
> after 2 years! It always looks like decay but for me this is a
> programmed down!
>
>

The numbers are board revisions. Occasionally Nokia re-engineers the
boards or incorporates changes to solve problems into later board runs and
the board version number changes. Sometimes the revisions don't work as
well as the original design. I was a lead technician at Nokia's Melbourne
repair facility and saw many boards and revisions and lack of schematics to
match the board I was looking at..real problem sometimes. Most of the time
the phones work long after the owner retires them. Taking the phones apart
wasn't a good idea. If they were in warranty they aren't now and if you
send them in you will most likely be sent a repair quote to get them
fixed...especially if you unsoldered something.

One of the major problems we saw with phones that inexplicably quit was,
believe it or not, water damage. one method of getting water damage is not
obvious--did you have it outside on a cold day, for example, and then go
into a warm house or office, etc? Condensation forms in the phone and if
you do it often enough it will affect the phone. another was the phone
getting "tweaked" from being in a pocket, especially a back pocket, and
then being sat upon. I've seen boards that looked like canoes from that.

But, to reiterate your answer, the numbers and letters are merely board
revision numbers and to identify the particular fabricator of the board in
question as well as the particular week and year of manufacture.

Ron
(Ex-Nokia tech)

> The numbers are board revisions. Occasionally Nokia re-engineers the
> boards or incorporates changes to solve problems into later board runs and
> the board version number changes. Sometimes the revisions don't work as
> well as the original design. I was a lead technician at Nokia's Melbourne
> repair facility and saw many boards and revisions and lack of schematics
> to
> match the board I was looking at..real problem sometimes. Most of the
> time
> the phones work long after the owner retires them. Taking the phones
> apart
> wasn't a good idea. If they were in warranty they aren't now and if you
> send them in you will most likely be sent a repair quote to get them
> fixed...especially if you unsoldered something.
>
> One of the major problems we saw with phones that inexplicably quit was,
> believe it or not, water damage. one method of getting water damage is
> not
> obvious--did you have it outside on a cold day, for example, and then go
> into a warm house or office, etc? Condensation forms in the phone and if
> you do it often enough it will affect the phone. another was the phone
> getting "tweaked" from being in a pocket, especially a back pocket, and
> then being sat upon. I've seen boards that looked like canoes from that.
>
> But, to reiterate your answer, the numbers and letters are merely board
> revision numbers and to identify the particular fabricator of the board in
> question as well as the particular week and year of manufacture.
>
> Ron
> (Ex-Nokia tech)

1. Why are you Ex-Nokia tech out of curiousity.
2. Do you suspect phone companies of programming their phones to develop a
fault after a period, ie like a Contact Service in a 3310 eeprom after a
length of usage? I'm sure it could be done. 3310s I know do have a time
mechanism hidden away within them. The average user wouldn't get it
repaired and buy a new phone. Ie after x time a byte could change in the
eeprom. In theory that could be done with anything.