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[二〇二一年二月五日]
iPhone5sを、買って補修をした   [to English Note

ある目的の為に、"iOS 11.4"以上で動作する「iPhone」が必要になった。
現在、私の手持ちには、iPhone4、iPhone5しか無くて、その仕事がこなせない。

ヤフオク!」で、iPhone6以上を狙おうとしたが、価格が合わなくて、どれも入札で負けてしまう。
仕方なくランクを落として、「iPhone5s」を狙って、(非ロック品)2台を確保した。
 *iPhone5s SoftBank(ホームボタン不良)¥2,000送料込み
 *iPhone5s docomo(ガラス右上割れ) ¥1,276送料込み

これらは、どちらも"前パネル"だけ替えれば、何とか使えるだろうという予測で、買ったものだ。
その"前パネル"には、以前に買った"アクティベーション・ロック"品などに買った、正常な"前パネル"が2枚あるので、それらを、また外して付け替えれば良かろうと考えたからだ。

"前パネル"を付け替えたら、"見栄え"も良くなったし、「ホーム・ボタン」も正常に使えるようになった。(図2[クリック])
ただ、一台の方は、まだ「電源ボタン」が陥没状態で、押し難いのだが、これを取り換えるのは危険が大き過ぎるので止めた。
両方を、「iOS 12.4」にアップ出来て、準備が整った!(図1)

+++ サーモグラフィ・カメラ +++

実は、(故障中の)「PC110」の基板の発熱・温度分布の様子を見たくて、「iPhone」で動作させられる"サーモグラフィ・カメラ"が欲しかった。
ずっと、安価なジャンク品を狙って待っていたのだが、やっと、動作品らしい「FLIR ONE」のジャンク品を見付けて、(コスト・パフォーマンス度外視で)買ってみた。(図3中央 ¥10,000送料込み)

iPhone5s」と「FLIR ONE」とを組み合わせて、やっと、動作確認する処まで漕ぎつけた。(図4[クリック])
これで、診察道具は用意出来た!
これからは、「PC110」の"正常動作する基板"と"動作不良の基板"とを比較して、問題点を調べたいと思っている。
分解能が、そこそこだから、どれだけ威力を発揮するか未知数だが、やってみないと分からない。
それに、そこから先は、全く未知だから、前途多難なような気がする。z(-.-;?

只、現在、(先般、中止した)「PC110」のBIOSチップを読み書き出来る自作の「フラッシュメモリ・ライタの作業を、また再開しているし、その他、私の好奇心をくすぐる面白そうなテーマを幾つも傍に置いてあるので、これに実際に手を付けるのは、時々になりそうだ。


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[2012/2/5]
iPhone5s was bought and repaired

For some purpose, I needed a " iPhone " that works with " iOS 11.4 " and above.
Currently, I have only iPhone4, iPhone5 and I can't do the job.

I tried to aim for iPhone6 or higher with " Yahoo Auctions! ", but the prices did not match and all bids. I will lose.
I had no choice but to drop the rank, aiming for " iPhone5s " and secured two (unlocked state).
* iPhone5s SoftBank (Home button defective) \ 2,000 including shipping
* iPhone5s docomo (glass cracked in the upper right) \ 1,276 including shipping

Both of these were bought with the expectation that they could be used by changing only the "front panel".
About such "front panel", I have two normal "front panels" that have been purchased for "activation lock" items , etc., and I thought it would be good to remove it and replace it.

After replacing the "front panel", the "look" improved and the "home button" became usable normally. (Fig.2 [click])
However, for one, the "power button" is still depressed and difficult to press, but I stopped it because it is too dangerous to replace it.
Both have been upgraded to " iOS 12.4 " and are ready ! (Fig.1)

+++ Thermography camera +++

Actually, I wanted to see the heat generation/temperature distribution of the board of " PC110 " (during failure), so I wanted a "thermography camera" that could work with " iPhone ".
I've been waiting for cheap junk items for a long time, but finally I found a junk item of " FLIR ONE " that seems to be a working item, and bought it (without considering the cost performance). (Fig.3, center \10,000 including shipping)

By combining " iPhone5s " and " FLIR ONE ", I finally got to the point where I could check the operation. (Fig.4 [click])
Now my examination tools are ready !
From now on, I would like to investigate the problem by comparing the "normally operating board" and the "malfunctioning board" of " PC110 ".
Since the resolution is decent, it is unknown how powerful it will be, but I will not know untilI try it.
Besides, since the future is unknown, I feel that the future is difficult. z(-.-;?

From now on, I'm going to investigate the problem by comparing the "normally operating board" and the "malfunctioning board" of " PC110 ".
Since the resolution is decent, it is unknown how helpful it will be, but I think that it will not be known until I try it.

Currently, I can read and write the BIOS chip of " PC110 " (which was canceled recently) I've resumed work on the Flash Memory Writer , and I have a number of other interesting themes that will tickle my curiosity. It seems that it will be time to actually touch it.


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