No more wifi and bluetooth after a restoration OS3 to OS4

Hi,
My iPod touch 3G 32go (MC008NF) was updated to OS 4.2.3 and everything was working OK, one day it gave me the screen "connect to iTunes" with the usb cable symbol. I had to make a restore, and I did not pay attention that my last backup was on OS 3.
It works fine, but I lost the wifi and the bluetooth, even after an blank restore, and all the steps mentionned on the apple official assistance guide.
I have then made an upgrade to OS 4.3.5 (8L1) to check if this problem was solved, but no and I still have the same probleme.
The informations menu gives me "Wi-Fi adress : N/A" and "Bluetooth : 00:00:00:00:00:00". The network menu gives me "no Wi-Fi" and the bluetooth menu says "unavailable" (in French...)
I had tried to se someone at the apple store from Paris, but they told me I need to buy a new one.. As this is not my fault but more a problem in the update system I was wondering if someone had a solution for that ?
Thank you
Thibaut

If you tried everthing here, then it is a hardware problem. I know of no solution for fixing the broken one.
iOS: Wi-Fi or Bluetooth settings grayed out or dim

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Hey there Abdulrahim0259,
I would recommend that you use the following 2 article to help troubleshoot the Wi-Fi and bluetooth issues you are seeing, respectively:
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Yoga 13 WiFi and bluetooth issue resolved

Unfortunately, I also met WiFi problems, but also found unexpected and sad solution.
Wifi worked pretty well at working place, but had problems at home. As an experiment I brought WiFi router from the working place home. It did not work!
At home I used pretty old keyboard and mouse plugged into passive USB hub. As soon as they were disconnected, problems disappeared. WiFi was also stable after I plugged power supply into the USB hub.
We are making 24-bit analog-to-digital converter that connects to the PC via USB. I exactly know its current consumption (300 to 330 mA) and know that it correctly handles USB rules about power regulations. Maximum current, specified by USB2.0 standard, is 500mA, so consumption of our ADC is within limits. As soon as I plug this ADC in, WiFi connection immediately disappears at the working place.
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Car manufacturers recall their products in the case of a failure. What about computer manufacturers?

Citation from Wikipedia:
The USB 1.x and 2.0 specifications provide a 5 V supply on a single wire to power connected USB devices. The specification provides for no more than 5.25 V and no less than 4.75 V (5 V ± 5%) between the positive and negative bus power lines. For USB 3.0, the voltage supplied by low-powered hub ports is 4.45–5.25 V.[61]
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