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Re: My first Kobo Touch reader died

From "Carlos E.R." <robin_listas@es.invalid>
Newsgroups sci.electronics.design
Subject Re: My first Kobo Touch reader died
Date 2025-08-31 22:52 +0200
Message-ID <t9peolx6ui.ln2@Telcontar.valinor> (permalink)
References <ao3bolxdnc.ln2@Telcontar.valinor> <1090rd9$32kd3$1@dont-email.me>

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On 2025-08-31 08:51, Don Y wrote:
> On 8/30/2025 4:26 AM, Carlos E.R. wrote:
>> https://photos.app.goo.gl/qWR1kVNFjcqDP8WT7
>>
>> The battery, which is not the original, but a replacement bought from 
>> China, is bulging, and made the case to open.
> 
> Have you looked at the third (white?) wire to see what it may be "saying"?
> (i.e., if it is saying ANYTHING)

No, I cut the cables and removed the bulging battery. But I read 
somewhere it is a temperature sensor.

> 
> You could also monitor what happens when you impress a fake battery voltage
> on the B+/- terminals.

I'll probably do that.

> 
> [Battery powered devices SUCK!]

For a book reader, it is a must. But I'd prefer standard AAA batteries 
or rechargeable equivalent.

> 
>> There was no exact replacement. I had to desolder a chip from the 
>> original battery and solder it to the replacement. Not shown well in 
>> the photo, it is at the other end. I added a close up photo of the chip.
>>
>>     The original battery was LP404252ARU, with three wires. One
>>     for some sort of sensor. Device does not power up with two wire
>>     batteries. On Aliexpres on 2020 I found a "404252 3,7 V 1200mAh
>>     batería recargable de polímero de litio para Kobo Touch E-book
>>     MP3 MP4 Lampe altavoz juguetes banco de energía móvil 404050".
>>     The links from back then are dead now.
>>
>>     I have not searched yet.
>>
>>
>> I bought another reader a year ago, in May. A Kobo Libra Colour. This 
>> one the company said they would process repairs. Perhaps means spares 
>> will be provided.
>>
>> Perhaps I should do something to power up the old reader and do a 
>> factory reset, or something, in order to remove the DRM thing from it 
>> (you can only have six on Adobe Digital Editions)
> 
> *What* will know if you have more?

Stops working. The seventh device is refused.
These things phone home before they authorize a device to read books.
>> (I don't see a group on epub or ebook readers)

-- 
Cheers, Carlos.

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Thread

My first Kobo Touch reader died "Carlos E.R." <robin_listas@es.invalid> - 2025-08-30 13:26 +0200
  Re: My first Kobo Touch reader died Don Y <blockedofcourse@foo.invalid> - 2025-08-30 23:51 -0700
    Re: My first Kobo Touch reader died "Carlos E.R." <robin_listas@es.invalid> - 2025-08-31 22:52 +0200
      Re: My first Kobo Touch reader died Don Y <blockedofcourse@foo.invalid> - 2025-08-31 16:20 -0700
        Re: My first Kobo Touch reader died "Carlos E.R." <robin_listas@es.invalid> - 2025-09-01 02:54 +0200
          Re: My first Kobo Touch reader died Don Y <blockedofcourse@foo.invalid> - 2025-08-31 18:12 -0700
            Re: My first Kobo Touch reader died "Carlos E.R." <robin_listas@es.invalid> - 2025-09-01 12:25 +0200
              Re: My first Kobo Touch reader died Don Y <blockedofcourse@foo.invalid> - 2025-09-01 06:53 -0700
                Re: My first Kobo Touch reader died "Carlos E.R." <robin_listas@es.invalid> - 2025-09-01 21:46 +0200
                Re: My first Kobo Touch reader died Don Y <blockedofcourse@foo.invalid> - 2025-09-01 13:11 -0700
                Re: My first Kobo Touch reader died "Carlos E.R." <robin_listas@es.invalid> - 2025-09-01 22:22 +0200
                Re: My first Kobo Touch reader died Don Y <blockedofcourse@foo.invalid> - 2025-09-01 13:58 -0700
                Re: My first Kobo Touch reader died Don Y <blockedofcourse@foo.invalid> - 2025-09-01 14:09 -0700
                Re: My first Kobo Touch reader died "Carlos E.R." <robin_listas@es.invalid> - 2025-09-02 13:15 +0200
                Re: My first Kobo Touch reader died Don Y <blockedofcourse@foo.invalid> - 2025-09-02 13:41 -0700
                Re: My first Kobo Touch reader died liz@poppyrecords.invalid.invalid (Liz Tuddenham) - 2025-09-03 08:55 +0100
                Re: My first Kobo Touch reader died Don Y <blockedofcourse@foo.invalid> - 2025-09-03 03:46 -0700
            Re: My first Kobo Touch reader died "Carlos E.R." <robin_listas@es.invalid> - 2025-09-02 14:11 +0200
              Re: My first Kobo Touch reader died Don Y <blockedofcourse@foo.invalid> - 2025-09-02 05:49 -0700
  Re: My first Kobo Touch reader died "Carlos E.R." <robin_listas@es.invalid> - 2025-09-05 22:13 +0200
    Re: My first Kobo Touch reader died Don Y <blockedofcourse@foo.invalid> - 2025-09-05 18:26 -0700
      Re: My first Kobo Touch reader died "Carlos E.R." <robin_listas@es.invalid> - 2025-09-07 13:43 +0200
        Re: My first Kobo Touch reader died Don Y <blockedofcourse@foo.invalid> - 2025-09-07 05:38 -0700
          Re: My first Kobo Touch reader died "Carlos E.R." <robin_listas@es.invalid> - 2025-09-08 23:43 +0200
            Re: My first Kobo Touch reader died Don Y <blockedofcourse@foo.invalid> - 2025-09-08 21:08 -0700
              Re: My first Kobo Touch reader died "Carlos E.R." <robin_listas@es.invalid> - 2025-09-09 14:09 +0200
                Re: My first Kobo Touch reader died "Carlos E.R." <robin_listas@es.invalid> - 2026-03-12 14:59 +0100
                Re: My first Kobo Touch reader died - solved "Carlos E.R." <robin_listas@es.invalid> - 2026-03-13 22:50 +0100

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