Rockbox Technical Forums
Support and General Use => Hardware => Topic started by: kamalneet on June 06, 2006, 10:02:19 AM
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yes with me away from my ipod charging and on rockbox (rebooting again and again) it destroyed two chips by philips
1. philips T1211 DC/DC converter ( http://www.rockbox.org/twiki/bin/view/Main/IaudioX5HardwareComponents#Philips_TEA1211_DC_DC_Converter )
2.philips PCF50605HN (PMU) power management unit ( http://www.chipworks.com/WebReports/ShowOverview.asp?ReportID=2368 )
i had put off charging after 2 hours and now have to open all of my ipod and operate it while opened only due to over heating of these two chips
since these are intergerated on the board and cannot be replaced
i am stuck up
not to mention that i cannot use rockbox any more due to over heating of these chips ,i can use apple firmware but that too does not give me back up any more
now DONT trust rockbox over charging issue till this date
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Please change your topic name. You changed your iPod firmware to enter deep sleep early, and this is what caused your problem.
We've also told people that to charge properly in Rockbox using the iPod charger, rather than USB, you hold the Menu button down while plugging it in, in Rockbox. You did not do this.
The problems you encountered were the result of your actions, especially the fact that you modified the settings of your Retail Firmware outside the bounds that are officially changeable.
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woah thats scary!
so if i plug my ipod in without holding down menu i could fry my ipod?
also if i am running the apple OS and i plug my ipod into the wall charger then it reboots into rockbox. can i stop this happening? also if this happens and i leave the ipod to charge overnight (i always did this before i had rockbox) then will this fry my ipod?
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The iPod will not reboot into Rockbox until it enters Deep Sleep. I believe this is after 48 hours of Sleeping, though I'm not 100% certain. At that point, it shuts off, then turns back on because the power cable is in.
At this point it goes into an endless reboot loop.
The problem is that the emergency disk mode reboots your iPod if there's no USB connection (which there isn't with the charger) but Rockbox goes into disk mode when it detects a USB cable providing power independent of connection (which the charger does).
You'd have to leave your iPod plugged into the wall for a couple days for this situation to turn up normally. It also can't happen at all if you charge from your computer, or firewire. Only USB charging in Apple's firmware, when Apple's firmware goes into Deep Sleep and then their disk mode continually tries to boot Rockbox.
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there should be a warning about that somewhere in the manual
Do not leave your rockboxed ipod charging for more than 48 hours at a time.
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My question is why someone would leave their ipod plugged in for that long anyway? ???
But if you hold menu, as I've done to charge the ipod sans computer, you'll be totally fine..
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My question is why someone would leave their ipod plugged in for that long anyway? ???
you might have an old ipod with a dead battery that you keep plugged in for your home stereo etc..
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True but in that case you'd be aware if it were rebooting non-stop. To keep plugged in in that case while not in use just doesn't make sense to me
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The other thing is, if you have it plugged into a home stereo, either A) you're in Rockbox (in which case this doesn't happen) or B) You only ever use retail (which means why do you have Rockbox installed?)
While this thread is a valid concern, it came about through the user's carelessness and the fact that he'd modified his retail firmware to sleep very early.
By the time Rockbox is actually released, I'm fairly certain either it will have its own USB mode, or it will be able to tell the difference between a power charger and an actual USB connection, and reboot or charge depending on which it is.
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well i cant tell you what happened i was asleep when i woke up i didnt know what was in it , its only in the late after noon when i put it on its dc/dc chip became hot while playing songs with rock box , it could also be that i had just updated .rockbox folder the previous day so , i dont know real cause , but dc/dc chip was spoilt due to continuous rebooting plus there is no option to default boot apple f/w which would have saved it , why cant be multiple option menu given through rockbox developers ,
i am sorry that i just fiddled with my little ipod (my baby) i shouldn't have put rockbox in first place (my mistake) , everything was going fine
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It's been explained many times why the Rockbox bootloader doesn't have a menu. Its purpose is to boot Rockbox as quickly as possible. The iPodLinux Loader 2 exists for those who need an option.
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NOTE THAT :and apple firmware while playing mp3 is not heating up dc/dc chip now means alot is wrong with rockbox power handling
ALSO nobody can wake up in the MIDDLE of the night to HOLD that MENU button (make sense with this) , concerns me for others to come
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The processor runs at a faster speed in Rockbox, which is most likely where the heat is coming from.
Also, you plug it in with the menu button held down. Also, it's not Rockbox's fault that your iPod was set to enter deep sleep MUCH earlier than a normal one. If it hadn't been, the problem wouldn't have happened to you, as you would've awakened and unplugged it far earlier than the problem happened.
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you are not trying to understand the point here ,forget the past what has happened to my ipod ,
i am trying to make a point here to rockbox developers that why not they make charger pluggin in easier ,and that is no MENU button pressing ,just a simple plug in so that rockbox never reboots
,no reboot means no chaos .
who knows someday someone else will make the same mistake too.
it is another improvement which rockbox should achive that is what i am trying to say
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And I said earlier in this thread that at some point I'm sure they WILL make it detect whether you've plugged in a charger or a USB cable, but that's not possible right now.
It's six posts earlier, the one I started with "The other thing is". You'll see it in there, at the end.
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sorry fella's for a late reply my mom had a minor cardiac arrest probs , well i was to continue that the dc/dc ate up the entire battery to dead while being in standby on apple firmware all night long ,actually ipod was in so bad shape that i needed to disconect battery from the board after its usage , so now i am using NOKIA BL - 5C ,battery or even siemens sx1 battery can be used too , only thing is you have to connect red(of ipod battery wire) to positive and black to negative of these batteries ,it also assumably shows approx voltage indication ,my ipod is working fine ,i only face a major problem when i have to use USB data transfer ,during which ipod hangs due to over heating dc/dc chip and i have to reformat it using restore utility from apple to avoid disk corruption , i also take off battery plug from the board after usgae is complete just to avoid full battery draining in off or standby mode
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Lloren, I beg to differ about the iPod with Rockbox not entering the rebooting cycle until after 48 hours. I just got my external apple usb charger. Plugged the cable into it and it into the wall. then I just plugged it into the iPod. Started the re-boot cycle immediately. Yes, when I held the menu button down it worked fine, but I just am darn thankful I read all these forums BEFORE I got my wall charger...
- John
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I said it won't enter the Reboot cycle for 48 hours IF you're in the Apple firmware.
Please, read thoroughly what I say.
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so.. how will we know if our ipod has been "bricked" due to irresponsible charging practices???
Will the ipod just be really hot or is there some sign that we should look for? This stuff is scaring me, maybe I should just wait til Nov. when it comes out :\
Thanks in advance
JP
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The original poster has said in another thread that the damage to his ipod was caused by a faulty charger, not the constant rebooting caused by Rockbox:
http://forums.rockbox.org/index.php?topic=4783.0
However, this constant rebooting is obviously not a good thing, and we'll try to fix it.
It's only a problem when using the USB wall charger (not when using a firewire charger or when connecting via USB to a computer), and is easily avoided by either holding MENU in Rockbox as you insert the USB cable, manually forcing your ipod into disk mode before starting to charge (reboot, then immediately hold SELECT+PLAY), or booting into Apple's firmware.
The original poster's ipod only started to constantly reboot because he had hacked the original firmware to enter deep sleep after 15 minutes - and because the ipod was connected to power at the time, it immediately woke up and booted into Rockbox. Rockbox (mis)detected a USB connection and then rebooted to disk mode. But disk mode couldn't find a connected computer so rebooted again and the cycle continued...
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My Ipod Gets pretty hot too but it doesnt fry. I leave it on in rockbox all night cus if i turn it off(hold Play) and plug it in it restarts and also if i put the hold on when it is off it starts up.
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Gosh, I wish some of you guys would speak English--you know who you are...
Please correct me if I am wrong:
1) Charging from a wall charger will send the iPod into a reboot loop if "Menu" is not pressed while it is being plugged in, so make sure the "Menu" button is pressed while you plug in the wall charger.
2) Don't leave your iPod plugged into the wall charger for extended periods of time (more than a few days) after shutting down from Apple's firmware because it will go into a reboot loop as soon as it goes into deep sleep.
I see no problem here, since I always shut my iPod off from Rockbox. Plus, I would never leave my iPod plugged into a wall charger for more than a night or so. However, I do see why some people would do so.
Just wanted to be clear on these points.
JBot
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Gosh, I wish some of you guys would speak English--you know who you are...
For some it's not their first language, and being that this is a public site AND project you shouldn't really be saying that. They're trying their best.
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Maybe there should be a thread stuck to the top of the forum if poss with info like this that could be damaging to the player. I had the rebooting deal happen to me with my new car charger and immediately shut it off,pulled it,and came here to see what the heck was going on. Found my answer but had to hunt around for it. I just installed RB on a friends pod and would hate to hear he damaged it somehow,ya know?
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Hi, i just want to know: Does it even charge when you plug the wall charger while in rockbox? I did the hold menu while pluging in the cable thing, and it doesnt seems like it is charging...
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I've charged it in Rockbox all night on some occasions when I was too lazy to revert back to the Apple OS; no problems.
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Does anyone's ipod freeze while charing via wall charger?
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Why not make it like iPL? iPL solved it nicely, it ASKS you if you feel like going in Disk Mode. If you say 'No', or just don't replay, the iPod stays in it's state and just charges. I really though that Rockbox and iPL would have done a bit more communication effords to get rid of such minor issues like these...
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Why not make it like iPL? iPL solved it nicely, it ASKS you if you feel like going in Disk Mode. If you say 'No', or just don't replay, the iPod stays in it's state and just charges. I really though that Rockbox and iPL would have done a bit more communication effords to get rid of such minor issues like these...
Holding a button to charge instead of entering USB mode is how Rockbox handled this situation before the ipod port, so that's how it's handled on the ipods - the ipods aren't the first devices Rockbox works on which have USB charging.
But the main issue (as mentioned several times in this thread) is the fact that there is currently a bug in Rockbox's USB detection which means that it doesn't distinguish between a USB connection to a computer and a USB connection to a wall charger.
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Attached is a patch that will always charge when usb is inserted and never reboot. Bit usless/trivial to add to the patch tracker I think.
I use it because,
I charge once a day but hardly ever need to access the drive.
I occasionally charge using a bicycle hub dynamo and plugging it in while holding the button is no fun while riding.
I'm not sure why rockbox needs the button press to charge. IMO it makes more sense to do it the other way around as charging is a more common action. Perhaps it makes more sense on the other players that can be charged via usb.
[attachment deleted by admin, too old]
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Actually, it's just the default way Rockbox works because many of the older devices didn't charge over USB at all, so there was only one action for plug in: Connect.
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Attached is a patch that will always charge when usb is inserted and never reboot. Bit usless/trivial to add to the patch tracker I think.
First, nice. Does it have a menu setting? If you can toggle the way it works (and it passes bug testing of course) I see no reason that they would not want it in the base build.
Second...
I occasionally charge using a bicycle hub dynamo
Where'd you get one of those? I /love/ that idea.
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For the people that charge using wall adapter, does it even charge at all? Last night, i plug in my ipod to charge(did the hold menu thing) and when i woke up in the middle of the night, it was at 40. So i was like ok... sure. But when i woke up for school, it was at 37... Does this happen to anyone else?
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yes with me away from my ipod charging and on rockbox (rebooting again and again) it destroyed two chips by philips
1. philips T1211 DC/DC converter ( http://www.rockbox.org/twiki/bin/view/Main/IaudioX5HardwareComponents#Philips_TEA1211_DC_DC_Converter )
2.philips PCF50605HN (PMU) power management unit ( http://www.chipworks.com/WebReports/ShowOverview.asp?ReportID=2368 )
i had put off charging after 2 hours and now have to open all of my ipod and operate it while opened only due to over heating of these two chips
since these are intergerated on the board and cannot be replaced
i am stuck up
not to mention that i cannot use rockbox any more due to over heating of these chips ,i can use apple firmware but that too does not give me back up any more
now DONT trust rockbox over charging issue till this date
2.philips PCF50605HN (PMU) power management unit ( http://www.chipworks.com/WebReports/ShowOverview.asp?ReportID=2368 )
you know what the thing he did wrong was, making a modification to your actual hardware, leading to problems not covered by apples's warranty
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For the people that charge using wall adapter, does it even charge at all? Last night, i plug in my ipod to charge(did the hold menu thing) and when i woke up in the middle of the night, it was at 40. So i was like ok... sure. But when i woke up for school, it was at 37... Does this happen to anyone else?
Yeah uhmmm.. this has been happening to me lately too. Nice to know I'm not crazy. There's been three or four times now where I plugged it in before I went to bed (almost dead) and when I woke up ~6 hours later, it was only at ~60%. Since that happened I've been so busy (and not wanting to worry about it) that instead of testing more, I just rebooted into Apple's fw before charging...... will have to see what happens tonight.
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For the people that charge using wall adapter, does it even charge at all? Last night, i plug in my ipod to charge(did the hold menu thing) and when i woke up in the middle of the night, it was at 40. So i was like ok... sure. But when i woke up for school, it was at 37... Does this happen to anyone else?
Believe it or not, I had this exact same issue with my 5G Ipod when I tried using a third party wall charger until I updated to the latest Ipod firmware (1.1.2 I think?). After that, my Ipod charges just fine from the wall. I saw a few other people posting at Ilounge with similar results.
Dave
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My 5g charges from my Apple-brand wall charger just fine in the Apple fw; notsomuch in Rockbox lately (wasn't an issue a few weeks ago).
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So if i leave my 5g plugged into the computer for 2+ days, my chip will fry?
Silly Rabbit, tricks are for kids!
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This thread is talking about charging from a WALL SOCKET. No mention is made of having it plugged into a computer.
I don't have a wall socket charger, but I FREQUENTLY (4 days a week for about a month now) have my iPod plugged into my computer for 10 hours straight, booted into rockbox, playing music through my desk speakers. It's never even warm to the touch.
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I'm using Julius's build on my 5G 30GB Video and when I plug it in to the wall adapter it only does the Rockbox boot cycle twice then it goes into disk-mode.