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Hacking i-o without removing BIOS w/expoxy
Has anyone had success hacking an iopener with epoxy on the BIOS, WITHOUT removing the epoxy?

New MessageHacking i-o without removing BIOS w/expoxy (modified 0 times) kctx7
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I have hacked over 30 i-o's, only two of which had epoxy on the BIOS. Typically I pass on the epoxied ones, even if they are $20.00. Recently I broke down and bought one that showed up at a local thrift shop, because I needed spare parts for other projects.

I started me thinking about the possibility of hacking a V5 without changing out the BIOS. Anybody had any success with this? Another thread in this forum, titled "GigaFast 802.11b USB adapter" seems to indicate it is possible? Does disabling/unsoldering the help?

10-22-2004 12:16:27

New MessageRE:Hacking i-o without removing BIOS w/expoxy (modified 0 times) kctx7
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One idea I am persuing: use a telco line emulator, a modem, a linux system with PPP, NAT firewall rules and some surrogate ethernet addresses aliased to local ports, and I can get the iopener on the web without having it actually dial an ISP. I can also watch or intercept every packet in and out.

Using whatever hooks the iopener had for software updates, I hope to either replace QNX altogether or re-enable the login prompt.

I have made some progress. Anyone else persued anything like this?

10-22-2004 18:15:28

New MessageRE:Hacking i-o without removing BIOS w/expoxy (modified 0 times) Spike
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The key to hacking one of the older epoxied I-Openers was to trick the unit into reading a harddrive with a QNX image loaded onboard. This was accomplished using some mirroring software called Dolly, and the procedure is outlined in detail in the archives circa May 2000. The early units could not differentiate between the real SanDisk DOC and a drive containing a v1/v2 image (complete with new BIOS binary and flashing software), so they cheerfully booted, granted root access, and allowed the offending BIOS to be reprogrammed. My I-Opener that was hacked in June 2000, still runs fine, and still has the epoxy goop intact. I must say I feel a certain extra satisfaction in having done it this way, rather than to chip away at the epoxy and risk some damage.

Granted, this is not as elegant a solution as reprogramming the device through an extenal connection, but it works, and you're adding a drive anyway, aren't you?

10-23-2004 17:25:09

New MessageRE:Hacking i-o without removing BIOS w/expoxy (modified 0 times) kctx7
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Aha. So there may not be a way with the V5 era devices, if they have the newer BIOS + epoxy? This is the bios that comes up with the white "iopener" logo against the black background, not the "out of the box, into the wall..." version.

The hacking I typically do involves connecting a drive only to flash the bios and the onboard sandisk (with Midori Linux) and then I remove the drive and put it back together.

10-23-2004 20:43:44

New MessageRE:Hacking i-o without removing BIOS w/expoxy (modified 0 times) Spike
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I don't have any personal experience with the v5 units, and I may be wrong saying this, but I believe that the BIOS chip must be physically replaced on a v5. Because of this, it is also my understanding that v5's don't have epoxy on them--Netpliance was confident these were "safe" and omitted the costly step. I'm not sure what prevents those chips from being flashed in place, but I'm sure someone on this board has the answer.

If your machines have the dark splash screen, epoxy on BIOS, Yamaha sound chip, and either the WinChip or RISE processor, they are most likely v3b or v4 units and can be hacked using the technique I described earlier. Check the archive for the step-by-step. Good Luck!

10-24-2004 05:51:24

New MessageRE:Hacking i-o without removing BIOS w/expoxy (modified 0 times) kctx7
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THANKS. You are right. The epoxied BIOS is no problem at all. I had just *assumed* that it was the same as the later BIOS that needs replacement, and I hadn't even tried to get to the BIOS setup screens. Once I did, things worked just like any of the other hacks I've done on earlier versions. The epoxy is not to be feared!
10-24-2004 15:44:41

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