iPhone iTunes error 2002/2001 after main logic board replacement

I have an iPhone 5S I have been trying to fix from a very long time.

First the problem started with battery drain or the phone would have trouble charging, i took it to about 6 to 7 different repair shops and most of them said there are problems with the IC on the logic board not allowing the phone to charge and that the battery is ok. However none of the were yet able to repair it despite changing the ICs on the board.

Thus, I took the matter in my own hands and ordered a working logic board all the way from china, I was successfully able to replace the old logic board with the new working one.

But now, the screen would still not show anything, the screen is completely blank

The phone is recognized with iTunes which was not the case before, meaning the new logic board works, however at the time of restore, during 'waiting for iPhone' step, i always get an error 2001 or 2002.

I know the power and home buttons work because I am able to disconnect and reconnect to iTunes using them, I am even able to enter DFU mode.

Also note, due to the very shady repair shops i took my phone to, i now realized they have not put back the EMI shield and screws which protect the screen and also the batter connectors, yes i do not have them.

Somebody help me bring my phone back to life,

Thanks!

I doubted there is something wrong with my battery or my LCD due to the amount of times they have been connected and disconnected on the mainboard, so maybe there was pry damage or any other damage.

So I took it to a repair shop and had the battery and lcd replaced as well just to try and it worked, therefore the solution was to replace mainboard, battery and the screen, the iPhone restored as well.

However I did not got for this solution at the shop because the sum total of the repair cost as much as a fully functioning used iPhone 5s. But if it suits your budget, go for it.

I will be getting a new iPod touch which costs a little more than the repair of this phone, which I am okay with since I already have a primary phone, S8 and just needed a device for iOS.

Thank you all.