Last time also u ask people to upgrade yours to 1.1.4 right?

Guys ... did u refer to this about error 16XX? I know its 22 pages but the answer is in there somewhere. U just need to search within the topic.

Terapox and others
Let me put it this way. Error 16XX have to do with you itunes and the firmware. It's not recognizing the correct firmware. It's either you got a corrupt ipsw to start with, did not pwned your itunes (v7.7.1) or did not put the phone in DFU.

What i would suggest,

1. Download the IPSW file again and make sure its for the 1st gen phone or download it from here@. The file name should be iPhone1,1_2.0.1_5B108_Restore.ipsw.

2. Next, open winpwn 2.0.0.4 and look for the iPhone1,1_2.0.1_5B108_Restore.ipsw.

3. Click on IPSW Builder. Tick on Cydia + YouTube + Activate iPhone + Resize the partition to 550mb.

4. Don't select installer (very buggy), custom image, custom payload, no wipe and enable baseband update.

5. Build iPSW.

6. Once done, click iPwner and select the CUSTOM ipsw file that u just created. This will pwned itunes and not the phone.

7. Close winpwn, open itunes and connect the phone.

8. Put the phone in DFU (10 secs method). The phone should not have anything on the screen (black screen) and itunes detect it as in recovery mode.

9. Shift + Restore and select the CUSTOM ipsw file that you made.

10. Wait for it to finish install (and cross your finger so no error 16XX)

With computers n softwares, there are a lot of variables to play with. It could be one thing for me thats stops me but could be other things for the others. An error elimination checklist like fellow JasLyn said is one thing that u can do. What i would suggest is to start from the beginning.

Doing it yourself and gaining the experience is more valuable than asking someone to do it for u. We learn thru our mistakes (and hope its not a big one) and later when your in this kind of situation again, you'll know what to do instead of having cold sweats.

If you want ... I can guide u step by step thru YM or MSN. Just PM me your id and set the time. I'll try to help as best as i can. If you are not free then by all means go and see string. He's a good chap and knows his stuff.