Upa USB reads always FF FF FF..-china clone.

**meteor80** · 3rd July, 2011, 01:14 PM

Hello
I received package with UPA usb from CHINA, but it doesn't work.
When I try to read 95640 or 93c46 it shows only FF FF.
Whe i run self test it fails 6 tests on 5V.
I attach a file containing test.
Maybe someone has that case and know how to repair that?

Regards.

**Zmann** · 3rd July, 2011, 05:36 PM

The six failed tests are failed only on pin1 Vpp that lower than the criteria but not much. But this pin never be used on to any eeprom and may not a cause. How do you connect to eeprom, off circuit on a socket or in circuit. Be patient to try more ic and some with different type, post more test results.

**meteor80** · 4th July, 2011, 05:26 AM

I try to read eeprom off circuit on adapter which was with UPA.
Today i try with other eeprom and post results

**meteor80** · 4th July, 2011, 07:09 AM

Ok.
I have tried with other eeproms.
95080, 25040 and 93C46 and always FF FF.
Later I will try to change 2x 74HC125D maybe that will help.
But if someone have any ideas i will be grateful.

**unu** · 4th July, 2011, 07:23 AM

Originally Posted by meteor80

Ok.
I have tried with other eeproms.
95080, 25040 and 93C46 and always FF FF.
Later I will try to change 2x 74HC125D maybe that will help.
But if someone have any ideas i will be grateful.

"Work is a primitive way to spend Your free time" ... indeed ...
How much you pay for this clone ?

**meteor80** · 4th July, 2011, 07:27 AM

110$ with adapters and shipment.

"Work is a primitive way to spend Your free time."
It's a quotation from the Polish cult film.

**meteor80** · 4th July, 2011, 07:58 PM

Does anyone know what are the elements which are labeled U1, U2 and U3?
In my programmer there are no element nr U1.

Thanks in advance.

**andy99** · 4th July, 2011, 09:45 PM

I also want to know what it U3
or where to find the diagram?
I have a pin1 12V always

**meteor80** · 5th July, 2011, 01:56 AM

This uploaded photo is from this forum, but in my programmer there are no U3 soldered- there is only place to solder that, but on the small PCB there is one more chip in SO8 housing but the label is scratched.

**AGK** · 5th July, 2011, 01:48 PM

U1- Attiny25(45)
U2- MC34063
U3- MCP3208

**meteor80** · 5th July, 2011, 07:24 PM

This is my UPA.
I see that I don't have an Attiny.
But I have some other element with 8 legs on the smaller PCB.
But it have scratched label.
Maybe someone know something about that mystery element?

Maybe someone have the dump of attiny? But as I know producents there are always protected

**digimile** · 6th July, 2011, 04:34 AM

hi
like ur profile picture show that u give order to employees.Why not buy one original product and than no need to order employees that this is not workign, that thing is not working.You are wasting time in collecting dumps of different eeproms and mcu and at the end no work.
Buy one from penko ELRASOFT Products
Thanxk

**meteor80** · 6th July, 2011, 06:22 AM

So now when I bought this sh*t i wont to try to fix it.
Price of Penko UPA is 3x more than that china clone and it don't have adapters.

**obdmaster** · 6th July, 2011, 08:52 AM

Ive had clone upa for 18 months and it has worked well.

But i wish i had bought original in the first place.

Meteor80 m8 it just seems youve been unlucky