upa-usb

**fuzz1** · 17th May, 2021, 01:46 PM

hi
would you still recommend buying upa-usb from aliexpress?

Are they worth it to read chips?

Or doesn't work or outdated.

Thanks

**Diogo Mello** · 17th May, 2021, 02:01 PM

for common jobs upa is still the most used by me, i also have vvdi prog and xprog but on the day day what upa is the most used due to its practicality! I buy some things on aliexpress, everything is going well and at the right time

**fuzz1** · 17th May, 2021, 03:05 PM

Thank you my friend. Saw a nec adapter on sale separately on AliExpress. I'm wondering if that adapter works with the clones or just with the original

Any feedback from anyone most welcome

Thanks

**fuzz1** · 17th May, 2021, 06:15 PM

What is the use of the Motorola adapters if some say that the protected chips cannot be read with upa?
Anyone been successful with upa to read the protected chips?

**slick_dick** · 17th May, 2021, 09:41 PM

buy original https://www.elrasoft.com

with my upa i dont use any adapters

i use it on almost all mcu's you find in airbag units

br

slick

**fuzz1** · 18th May, 2021, 03:14 AM

Thank you for your reply. So you just weld wires directly on the board without resoldering the mcu I'm guessing.

**fuzz1** · 18th May, 2021, 03:43 AM

Thank you for your reply. So you just weld wires directly on the board without resoldering the mcu I'm guessing. I can't see connection diagrams on the eleasoft website

**PSAcars** · 18th May, 2021, 09:26 AM

Hello to all. For original upa I can say that is covering 90% of mcu in airbag for the moment, for connection diagram I use cpt web site, and build in pin out in upa soft. From elrasoft I received some help for problems with read and write of mcu, very fast support.

**fuzz1** · 18th May, 2021, 10:12 AM

Originally Posted by PSAcars

Hello to all. For original upa I can say that is covering 90% of mcu in airbag for the moment, for connection diagram I use cpt web site, and build in pin out in upa soft. From elrasoft I received some help for problems with read and write of mcu, very fast support.

My friend it is always nice to hear from you. I went on the elrasoft website. I am used with the clones so was expecting to find adapters for the chips. Seems there are not many. We probably expected to count and weld. Now will probably need a microscope too.

Do you use it on windows 7 or windows 10? Seems the original upa soft doesn't work on them. Had to try it on windows xp.

Anyone been able to use it on windows 7?

**PSAcars** · 18th May, 2021, 11:15 AM

Hello to all. No problem for original upa-s. I have it working on win8.1, win 10, win XP SP3. For the eeprom 8pins you will need a cheap (or expensive) socket and for the MCUs will need to solder max 8 wires. For older nec in PSA cars ( BSI, DASH ) for upa you can buy china nec adapter and rework from my thread here in DK. After that adapter is 100% original and working.

**slick_dick** · 18th May, 2021, 08:48 PM

....................................

**slick_dick** · 18th May, 2021, 08:49 PM

Originally Posted by fuzz1

Thank you for your reply. So you just weld wires directly on the board without resoldering the mcu I'm guessing.

correct,

plus i agree with everything PSAcars said

br

slick

**Hondasilver** · 18th May, 2021, 11:48 PM

I just received the clone version UPA- USB V1.3 from AliExpress and it does works on Windows 10 .

**fuzz1** · 19th May, 2021, 03:18 AM

Thank you all for your help. I decided to buy the original.

However going through the schematic I find dashed lines on some connections. Are the dashed lines just for connections to program the eeprom and MCU?