Help idenfication component smd xprog v5.84

[MATCAS]

Hi all Digital Kaos users, I would need to know the component name (or equivalent) circled in red, on the bottom side of the pbc xprog v5.84 box, I unsoldered this component from the PCB and at the bottom of the component it shows this abbreviation 30 K CR, at the moment I have not yet been able to find any correspondence on the internet, I have to buy this component, now let me explain:
I have 2 xprog v5.84, 1 of which without this component, and then this xprog shows me the Device is Silent message, unsoldering the component from the working xprog and soldering back into xprog showing the Device is Silent message, then I click on update and now xprog works, is there someone who can help me please,
Thanks and best regards, hoping that some of you will answer me.

[Stelaras26]

if its the same pcb as 5.5 i can open mine and check if you want

[MATCAS]

Ok thanks, you are the first person to answer me, if you have time try to check and thank you again for taking an interest in my problem

[Stelaras26]

So i opened it but its slightly different,does not have this part

its like this one

https://lh3.googleusercontent.com/pr...FL6INhV3dLXslU


But,i dont think your issue is this

[MATCAS]

I have 2 Xprog v5.84 they are the same, 1 is with this component and is working, the other is without this component and shows me the message DEVICE IS SILENT. I did this test: I unsolder this component from working xprog and then solder this component on the non-working xprog: Result is that now xprog works, so this component makes the difference.
I also did another test: I soldered an Atmega 64 chip and flash it with firmware 5.5.1 and xprog works even without this little chip, but if I put back Atmaga 64 with firmware 5.84 without this little chip, xprog shows the message, DEVICE IS SILENT, so I would need to buy this little chip.