What do you mean "sync'd them from a usb cable?" Do you mean that you've loaded firmware onto the camera directly?
Right, I'd like to know where I might have gone wrong then. This is my first attempt at asking a digital camera to boot anything other than the manufacturers OS and I think I've followed the directions pretty closely.
Random thought: Were you using external power when cameras were bricked? A bad PSU could certainly brick a camera.
I don't have an o-scope or werewithal to use it effectively
Quote from: rduz on 09 / March / 2018, 16:59:47Quote from: 62ndidiot on 06 / March / 2018, 00:17:56I'd say two from the same user implies that the user is doing something different from other users. Not hardware but a bug in chdk ( install process ) or a misunderstanding of something by the user.Right, I'd like to know where I might have gone wrong then. This is my first attempt at asking a digital camera to boot anything other than the manufacturers OS and I think I've followed the directions pretty closely. The only deviation so far is the fact that sticks has a now-acknowledged bug and won't write correctly to SD cards on Ubuntu 16.04, so I ended up using licks. When I examine the SD card contents, from what I can tell, they do appear to be correct. Maybe it's just bad luck. I'm now forced to decide on trying to obtain yet another elph 160, or if I bite the bullet and buy a couple dlsr's. The bookscanner software maker pi-scan recommends Nikon 1 J5 for the DSLR (as of this writing) interfaced via libgphoto rather than chdk. Two new Nikon 1 J5's will cost me around $1000, which is a definite ouch. Currently, I'm out $100 in used cameras.Well, with $1000 at stake I have another suggestion.The ixus160 / elph160 CHDK build includes a ps.fi2 file. Which means that it supports Firmware Update Method booting. You can simply low level reformat an SD card in your working camera and then use your PC to unzip the CHDK installation zip file (expanding directories) to the root folder on the SD card. No LICKS or STICK or any other special card formatting required. Start the camera by pressing the Playback switch (not the On/Off button) and then navigate the left hand tab Canon menu down to the bottom and select the "Firmware Update" option.I guess it's possible that you will also brick your 3rd camera that way but it seems unlikely. With my other option being $1000 in clunky DSLR's, I'd go for it. YMMV.
Quote from: 62ndidiot on 06 / March / 2018, 00:17:56I'd say two from the same user implies that the user is doing something different from other users. Not hardware but a bug in chdk ( install process ) or a misunderstanding of something by the user.Right, I'd like to know where I might have gone wrong then. This is my first attempt at asking a digital camera to boot anything other than the manufacturers OS and I think I've followed the directions pretty closely. The only deviation so far is the fact that sticks has a now-acknowledged bug and won't write correctly to SD cards on Ubuntu 16.04, so I ended up using licks. When I examine the SD card contents, from what I can tell, they do appear to be correct. Maybe it's just bad luck. I'm now forced to decide on trying to obtain yet another elph 160, or if I bite the bullet and buy a couple dlsr's. The bookscanner software maker pi-scan recommends Nikon 1 J5 for the DSLR (as of this writing) interfaced via libgphoto rather than chdk. Two new Nikon 1 J5's will cost me around $1000, which is a definite ouch. Currently, I'm out $100 in used cameras.
I'd say two from the same user implies that the user is doing something different from other users. Not hardware but a bug in chdk ( install process ) or a misunderstanding of something by the user.
Quote from: reyalp on 09 / March / 2018, 23:52:04Random thought: Were you using external power when cameras were bricked? A bad PSU could certainly brick a camera.Battery.Moreover, the camera can operate from bad AC power supply until you connect it to PC using USB cable.(due to a breakdown of insulation between the primary and secondary sides)@ rduzDid you try to do it with your third camera?In case of software problem(if you really want to find the cause) you need to connect to UART:I did today and detailed it in another post. In short, cam3 is operational! I ebay'd a fourth camera today.Quote I don't have an o-scope or werewithal to use it effectivelyYou don't need an oscilloscope.These links could help you:https://chdk.setepontos.com/index.php?topic=13278.0https://nada-labs.net/2014/finding-jtag-on-a-canon-elph100hs-ixus115/
Even if they are pointed out to me or marked, and I can obtain the proper serial cable, and I can successfully connect to them, I am completely in the dark as to what I would actually do to repair the cameras.
Quote from: rduz on 10 / March / 2018, 22:15:10Even if they are pointed out to me or marked, and I can obtain the proper serial cable, and I can successfully connect to them, I am completely in the dark as to what I would actually do to repair the cameras.Just connecting to it would tell us whether the bootloader (aka ROMSTARTER) is running or not. If it is, it sould likely be possible to more diagnostics to figure out what the specific problem is (for example, finding if the main ROM is damaged, or getting additional error output), and possibly repair it by loading code from the bootloader.If the bootloader isn't running, then there's likely either physical damage or the entire onboard flash has been damaged.
Ok, so is the process for doing so documented somewhere?
Quote from: rduz on 11 / March / 2018, 18:14:44Ok, so is the process for doing so documented somewhere?Not more than the wiki page (http://chdk.wikia.com/wiki/UART) and links Ant gave.It's up to you to decide if this is something you want to do, I only posted to say that it would potentially help us understand what happened.
I think the image posted earlier in the thread encompasses 7 or 8 pads, but doesn't identify which is tx and which is rx.
Quote from: rduz on 16 / March / 2018, 11:38:44I think the image posted earlier in the thread encompasses 7 or 8 pads, but doesn't identify which is tx and which is rx.The image posted earlier in the thread contains 8+9=17(+2 mounting) pads for unsoldered connector (for canon developers). Look at WIKI. Just solder two wires(+ one for GND) and measure voltages on it after pressing power button or closing battery cover. Or connect alternately one of them to RX input of your "USB TTL Serial Cable". I don't know what are voltage levels on Digic4 cameras. On Digic6 cameras it's 1.8V...
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