无法为Nook HD +充电/电源 -- battery 领域 和 charging 领域 和 hardware 领域 和 nook-hd 领域 和 nook 领域 android 相关 的问题

Can't charge/power on Nook HD+


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问题

中文

设备无法打开电源。屏幕和状态光显示在按住或按住电源按钮时无效(或按钮的任何按钮/对线组合)。

Nook HD +(型号BNTV600)已未使用至少六个月。它不会开机,所以我假设电池简单地死了,让它过夜插入充电,但是第二天仍然不会电源。我怀疑它没有充电。当最初连接到充电器时,光线显示绿色三秒钟,并显示橙色/琥珀色三秒钟,然后仍然关闭(有一个简短的闪烁橙色/琥珀色 - >绿色之间的转换在颜色之间的过渡。

设备在存储前正常运行。我尝试过两种不同的Nook HD + - > USB电缆和两个不同的USB AC适配器和行为都是一样的。

这个设备是否完全死了?是否有任何技巧可以让这件事充电/电源?

english

The device won't power on. The screen and status light show no indication of activity when pressing or holding the power button (or any button / pairwise combination of buttons for that matter).

The Nook HD+ (model BNTV600) has been unused for at least six months. It would not power on, so I presumed that the battery was simply dead and left it plugged in overnight to charge but would still not power on the next day. I suspect that it is not charging. When initially connected to a charger the light shows green for three seconds and shows orange/amber for three seconds and then remains off (there is a brief flicker orange/amber -> green at the transition between colors).

The device was functioning normally before storage. I've tried charging with two different Nook HD+ -> USB cables and two different USB AC adapters and the behavior is all the same.

Is this device completely dead? Are there any tricks to get this thing to charge / power on?

              

回答列表

2
 
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最佳答案
 

由于设备显示出短暂的活动(状态LED被照亮的六秒钟)我将Nook的所有者设置在任务中,以强制涓流充电到设备。使用工厂电缆和USB电源适配器插入Belkin节省电源开关可以轻松中断电源(浪涌保护器也可以运行)他们发现可以使设备充电最小,以便它将允许正常的"无人看管" 充电。

为它们工作的程序是:

  1. 应用功率
  2. 中断功率点的状态LED将转换为琥珀色
  3. 在重新施加电力和重复之前等待几秒钟(我们不记得只需长时间只是在相同照明模式再次引出之前的最短时间;在5秒左右的某个地方)

此后15-20分钟后,设备最终显示屏幕上的充电图标,并以预期的预期运行和充电。

 

Since the device showed brief activity (the six seconds which the status LED was illuminated) I set the owner of the Nook on a mission to force a trickle charge to the device. Using the factory cable and USB power adapter plugged Belkin Conserve Power Switch to easily interrupt the power (a surge protector could work as well) they found that it was possible to give the device a minimal charge so that it would permit normal "unattended" charging.

The procedure that worked for them was:

  1. Apply power
  2. Interrupt power at the point the status LED would transition to amber
  3. Wait some seconds before re-applying power and repeating (we don't recall how long it was exactly only that it was the minimum amount of time before the same illumination pattern could again be elicited; somewhere around 5 seconds)

After 15-20 minutes of this the device finally displayed the charging icon on the screen and has been functioning and charging as expected since.

 
 
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我的Nook高清+我有类似的症状:当插入充电器时,指示灯变为绿色,然后橙色,但只有一秒钟,然后变黑。当留在充电器时数小时,指示灯将开始闪烁红色。没有任何工作,直到我在这篇文章中读取技术细节:

https://forum.xda-developers.com/showthread.php ?t = 2796915

底线:如果电池电压降低1.8 V,则愚蠢的控制芯片假定电池是"坏" ,并拒绝通过充电电流;与观察到的症状 s一致。这给了我一个关于如何解决这个问题的想法:

步骤1 :通过撬开前面板打开Nook以获得安装螺钉,然后拧下后面板。

步骤2 :定位由三个红色,三个黑色,一个蓝色和一根黄色电线组成的电池电缆。

步骤3 :在电线下定位电路板上的金色测试点:"vbat" 在红色电线下,"蝙蝠" 下的黑色电线下。< / p>

步骤4 :您必须将控制芯片诱导为"思维" ,电池仍然是"好" 。为此,您需要外部电压源。我用我的自制可调直流电源设置为2.5 V.我猜,1.8 - 3.7之间的任何电压都应该工作。

步骤5 :将来自外部电源的引线连接到"VBAT" 测试点,连接(或地面)导致"蝙蝠" 测试点。

步骤6 :将您的角落插入充电器并等待几秒钟:指示灯现在将保持坚固的橙色,这意味着充电电流通过。耶!您应该断开外部直流源;它不再需要。

这里有帮助图片:

https://www.dropbox.com/sh/mmr2gdfpalaw4w4/aaa7lenyexgbpungcildp8vna ?dl = 0

 

I had similar symptoms with my Nook HD+ : when plugged into charger the indicator light turned green, then orange, but only for a second, then went dark. When left on charger for many hours, the indicator would start blinking red. Nothing worked, until I read technical details in this post:

https://forum.xda-developers.com/showthread.php?t=2796915

The bottom line: if the battery voltage drops below 1.8 V, the stupid control chip assumes the battery is "bad" and refuses to pass the charging current; consistent with the observed symptoms. This gave me an idea on how to fix this:

Step 1: Open the Nook by prying the front panel to get access to mounting screws, then unscrew the back panel.

Step 2: Locate the battery cable composed of three red, three black, one blue, and one yellow wires.

Step 3: Locate the gold test points on circuit board under the wires: "VBAT" under the red wires, "BAT-" under the black wires.

Step 4: You have to trick the control chip into "thinking" that the battery is still "good". For this, you'll need an external voltage source. I used my homemade adjustable DC power supply setting it to 2.5 V. I guess, any voltage between 1.8 - 3.7 should work.

Step 5: Connect the positive lead from the external power source to the "VBAT" test point, connect negative (or ground) lead to the "BAT-" test point.

Step 6: Plug your Nook into charger and wait a few seconds: the indicator light will now stay solid orange meaning the charging current is passing through. Yay! You should disconnect the external DC source; it's no longer needed.

Here are helpful pictures:

https://www.dropbox.com/sh/mmr2gdfpalaw4w4/AAA7leNYExGbPunGciLDP8Vna?dl=0

 
 
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Li离子电池具有保护电路,当放电低于一定水平时踢进。该装置可能一直保持在存储器上,电池电量低。电池"自放电" ,速度速度,但在您的情况下,它会更快地排出,因为初始充电电流可能较低(猜测)。

无论是什么是实际原因,电池拒绝充电,因为保护电路已踢入。通过试图充电,但由于彩色灯的转变而指示,该假设是证实的。在充电之前,它需要某些电流将应用于它。这被称为"升压" 。 如何唤醒睡眠li-ion 解释说,并建议道路 如果您无权访问此类充电器(我还没有找到我留下的位置),最好的赌注将是访问服务中心,看看它们是否具有和所有概率,请更换电池

编辑

这是一个文章如何修复死锂离子电池这表明一种"跳转开始" 电池的方法(请阅读警告),如果您决定尝试此方法,请更新结果(方法涉及剥离USB电缆并直接将其连接到电池的正确极性)

所有最好的

 

Li Ion batteries have a protection circuit that kicks in when the discharge falls below a certain level. The device may have been kept in storage for long, with a low battery level. Batteries "self-discharge", at a slow rate but in your case, it drained out faster , since the initial charge current may have been low (guessing).

Whatever be the actual reason, the Battery refuses to charge, since the protection circuit has kicked in. This hypothesis is corroborated by the attempt to charge but failing as indicated by transition of coloured lights. It requires certain current to be applied to it before charging can happen. This is called "Boosting". How to awaken sleeping Li-ion explains it and suggests ways

In case you don't have access to such chargers (I haven't found one where I stay), the best bet would be to visit a service center to see if they have and in all probability replace the battery

Edit

Here's an article How to fix a dead Li-Ion battery which suggests a way to "jump start" the Battery (do read the warnings) and if you decide to try this method, please update outcome (method involves stripping a USB cable and connecting it with right polarity to the battery directly for a while)

All the best

 
 
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我有nook高清的问题几秒钟然后琥珀几秒钟然后没有。 如上所述,因为电池在坐到太长的W / O充电器后持平。

如果您只有一个充电器,您可以尝试插入,绿色到琥珀色,那么您,Un-Plug,等待第二或两个,再加和重复循环,或尝试另一个充电器。 我尝试了大约10次的插头拔掉,然后尝试了三星平板电脑的墙壁疣,它留下了琥珀色。 学习的课程:让吸盘充电!即使是新的三星平板电脑也会随着时间的推移而放弃。

 

I had issue with Nook HD going green for a few seconds then amber for a few seconds then nothing. As stated above its because the battery went flat after sitting for too long w/o charger.

If you only have one charger you can try the plugging in, green to amber then you, un-plug, wait a second or two, replug and repeat cycle, or try another charger. I tried the plug unplug for about 10 times then tried the wall-wart from a Samsung tablet and it stayed amber. Lesson learned: keep the sucker charged up! Even new Samsung tablet will discharge over time if not kept charged.

 
 
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不需要执行任何内容,肯定不会打开设备。找到Mac USB端口,我已经看到MacBook Pro USB端口推荐在线。我没有其中一个,但我确实有一个旧的Mac Mini Power PC,所以我切换到了一个开启并将Nook HD + USB电缆插入其USB端口和宾果游戏之一!发射,充电符号出现在Nook的屏幕上,现在正在充电。找到自己的Mac或Mac的朋友。

 

Don't need to do any of the above, certainly don't open the device. Find a Mac USB port, I've seen MacBook Pro USB port recommended online. I don't have one of those but I do have an old Mac Mini Power PC so I switched that on and plugged the Nook HD+ USB cable into one of its USB ports and bingo! Fired up and the charging symbol appeared on the screen of the Nook and it is now charging. Find yourself a Mac or a friend with a Mac.

 
 
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感谢使用MAC电源连接器的尖端。我的角落暂时没有使用过,当我第一次尝试向它充电时,电池低于10%。它似乎从不恢复,我无法打开它或执行硬重置。我最终将其插入Mac Book Pro的多端口(USB)MAC连接器中。 Bammmm。它几乎立即出现了一个现场,我能够在正常程序下重新打开它。

最后一个点。虽然Nook仍然插入您应该重新启动;否则,拔出后,它将恢复到僵尸模式。通过简单地将设备封装并再次为其供电,然后重新启动来纠正这也可以纠正。

我回到了商业。再次感谢......伟大的提示,并会推荐给任何一个有类似问题的人。

ps:如果您没有MAC电源或基于适当的USB连接,请尝试并转到Apple Store以查看它们是否可以为您提供"稳固" 。您可能希望前进并询问和/或预约。

 

Thanks for the tip on using a MAC power connector. My Nook has not been used in a while and the battery was below 10% when I first tried to charge it. It never seem to recover and I could not power it on or perform a hard reset. I ended up plugging it into a multi port (USB) MAC connector for an MAC Book Pro. BAMMMM. It almost immediately came a live and I was able to power it back on under normal procedures.

One last point. While the Nook is still plugged in you should do a reboot; otherwise, it will revert back to a zombie mode when unplugged. This too can be corrected by simply plugging the device back in and again powering it on, then rebooting.

Ixe2x80x99m back in business. Thanks again ... great tip and would recommend it to any one with a similar issue.

PS: If you do not have a MAC power supply or the proper USB based connection for one, then try and go to an Apple store to see if they can do you a xe2x80x9csolidxe2x80x9d. You might want to can ahead and ask and/or make an appointment.

 
 
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我对我的角落有同样的问题。我没有Mac,但这给了我一个想法。我有一个便携式手机充电器,所以我插上它,低电平,看起来它回到了生活!!

 

I had the same problem with my nook. I don't have a Mac but that gave me an idea. I have a portable phone charger so I plugged it up and low and behold it came back to life!!

 
 
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我尝试了许多不同的墙壁充电器和PC端口,以收取矿井,没有运气。通过反复连接/断开连接,尝试了涓流充电技巧,并在没有运气的情况下完成了30多分钟。

工作是使用电池备份,如人员使用,以为他们的手机充电。我碰巧有一个我在工作会议上免费获得的小。它输出5V / 1A。当我在第一次尝试时插入这个小电池时,我立即开始充电,没有拧紧或拆卸所需的。

 

I tried a number of different wall chargers and PC ports to charge mine with no luck. Tried the trickle charge trick by repeatedly connecting/disconnecting and did it for over 30 minutes with no luck there either.

What did work was using a battery backup like people use to charge their cell phones. I happened to have a little one I got for free at a work conference. It outputs 5V/1A. I immediately got the Nook to start recharging when I plugged in this little battery on the first try with no screwing around or disassembly needed.

 
 
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MacBook的另一个成功(不是Pro)。 2 ea。 Nook HD,3 EA。电缆,多个电源全部失败,绿色,琥珀色,红色,黑暗LED和没有充电症状。 在MacBook USB端口中使用电缆时,两者都充分充电。

不幸的是,从Mac成功充电后,它们仍然不会直接从电源充电。

我现在有一个非常大的充电器(MacBook)对于这些非常小的片剂。

 

Another success with MacBook (not pro). 2 ea. Nook HD, 3 ea. cables, multiple power supplies all failed with the green, amber, red, dark LED and no charging symptom. Both charged fully overnight when using the cable in the MacBook USB port.

Unfortunately, after charging successfully from the Mac, they still won't charge from the power supplies directly.

I now have a very large charger (the MacBook) for these very small tablets.

 
 
 
 
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好的,得到它。不要打开平板电脑或获得花哨的想法。我所做的是简单,但耐心。我插入它,它在5秒后从绿色到琥珀色。这样做的是10秒的间隔几次,然后将其留在琥珀色的琥珀色持续15分钟去做点什么。回来了,它仍然是琥珀,但充电。每次都是琥珀,但每次充电,都尝试在琥珀做更多的绿洲。只剩下它5分钟,然后眨眼就眨了眨眼。现在收取了谢谢每个人的想法。

 

Okay, got it going. Do not open the tablet or get fancy ideas. What I did was simple but took patience. I plugged it in and it turned from green to amber after 5 seconds. Did that several times at 10 second intervals then left it plugged in on amber for 15 minutes to go do something. Came back, it was still amber but charging. Tried doing a few more greens to amber each time it aent amber but was charging. Left it alone 5 minutes and it blinked then went green all by itself. Now charged up and thanks for everyone's ideas.

 
 

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