情報來源：
https://9to5mac.com/2019/08/07/iphone-battery-service-message/
Apple discouraging aftermarket iPhone battery swaps with new ‘Service’
message in iOS
蘋果藉由警告訊息來嚇阻私下換電池
Apple is taking new measures within iOS to prevent aftermarket battery swaps
for the iPhone. As detailed by iFixit, Apple has activated a “dormant
software lock” in iOS that blocks features like Battery Health in Settings
when an iPhone uses a battery that was not installed by Apple itself.
蘋果已經啟動了一個軟體鎖，當你的手機電池不是由蘋果安裝時，會看不到電池健康度
Essentially, if your iPhone needs a new battery and you take it upon yourself
to replace the battery, the Settings app will display a “Service” message
that reads as follows:
除此之外，你打開設定的時候會看到以下訊息
Important Battery Message
Unable to verify this iPhone has a genuine Apple battery. Health information
not available for this battery.
無法驗證這是真的蘋果電池，所以無法顯示健康資訊
Notably, this message will appear whether you install an aftermarket battery
or an official battery from Apple. The only scenario in which it doesn’t
appear is when Apple itself or an Apple authorized service provider does the
battery swap.
就算你是裝真的原廠電池，還是會看到同樣的警告畫面。只有蘋果或是其授權商換的
電池才不會有這個警告。
All of this stems from a Texas Instruments microcontroller on the battery
itself, which includes an authentication feature that includes details for
pairing the battery to the iPhone’s logic board. If the authentication key
provided by the battery doesn’t match what your iPhone is expecting, you’ll
get the “Service” warning. Apple and its partners are the only ones who can
clear this “Service” message.
這來自於電池本身微控制器的授權，假如iphone偵測到不同的授權，就會給你警告
Put simply, Apple is locking batteries to their iPhones at the factory, so
whenever you replace the battery yourself—even if you’re using a genuine
Apple battery from another iPhone—it will still give you the “Service”
message.
The only way around this is—you guessed it—paying Apple money to replace
your iPhone battery for you. Presumably, their secretive diagnostic software
can flip the magic bit that resets this “Service” indicator. But Apple
refuses to make this software available to anyone but themselves and Apple
Authorized Service Providers.
相對而言，蘋果和其授權商可以用軟體把"服務"的這個指標重設，所以不會顯示"服務"
訊息
簡單的說：我要賺錢～
不過中國的授權商不會把這個軟體流出嗎？
作者:
marx0126 (What's up?)
2019-08-08 15:52:00我上次去神腦換完也看不到啊 DFU後也一樣
作者:
Ken52039 (Ken Huang)
2019-08-08 16:10:00健康度顯示了還會覺得阿炸，還不如不要顯示
健康度有什麼好看的啊，感覺沒電就換，健康度看個屁啊反正健康度還很高一樣會噴電，這數據很爛到爆啊
作者:
BDrip (藍光~)
2019-08-08 16:33:00接coconutbattery還看的到就好
作者: chennylee809 (chenny) 2019-08-08 16:46:00
健康度靠感覺就好啦 掉電快就該換了
作者:
yuyu814 (yuyu)
2019-08-08 17:27:00以前沒電池健康度時 大家還不是爽爽用 現在有了卻很多人在意那個1、2% 想不通
作者:
Vek1112 (喔登登)
2019-08-08 17:43:00沒差 本來的也沒多準 還是有辦法測
作者:
cevs (cevs)
2019-08-08 18:08:00還不一下就被破解
作者:
XD119 (pig)
2019-08-08 18:15:00自己來的話半年一次應該永遠90up
作者:
mopanda (莫貓)
2019-08-08 18:16:00我換紅扳手 看得到電池健康度啊
作者:
bcpsowen (pigbull)
2019-08-08 18:53:00我的原廠電池健康度永遠100 那麼不準還敢威脅唷
作者:
kenss (Ken)
2019-08-08 19:34:00沒差、那健康度假的
作者:
huabandd (我是阿肥巴你頭)
2019-08-08 20:09:00無所謂，健康度一點都不重要手機開始嚴重掉電直接換電池就好了
作者: w09703006 (jonathanwang) 2019-08-08 20:51:00
看得到剩餘電量就夠了
作者:
PPPGGG (凸( ﾟ∀ﾟ)凸)
2019-08-08 21:32:00= =我前幾天去A13換電池 staff建議我80%以下再換電池我剩下86%壽命就稱不到半天了 誰跟你80%以下
作者: voyage0131 (從未實現過的人類大夢) 2019-08-08 21:54:00
萬一電池膨脹只能換整新機 不能換電池
作者:
section (蛇蛇)
2019-08-09 06:45:00二手買賣就知道是不是原裝了嘻嘻
作者: tungptt (tungptt) 2019-08-09 08:07:00
這不是很久了嗎 還是又是新政策
作者:
denal (葉子)
2019-08-09 10:47:00就算看到健康度也很難讓人相信是真的；i8前十個月內掉到85%，然後接下來半年完全不會掉，卻很明顯感受到續航力變差感覺蘋果又在搞骯髒手段根本是可以避開79%以下可以出保
作者:
y956403 (尋歡)
2019-08-09 13:37:00主要不是真的想讓你看不到健康度 是要讓你沒辦法隱瞞私下換過吧
作者:
kaybai 2019-08-09 14:52:00我上禮拜才剛把電池健康度還有95%但電池已經膨脹到撐爆機身的iphonex送回原廠換電池而已拿回來單子上是寫更換電池跟螢幕重點是完全免費！
作者:
ooxxboy (ooxxboy)
2019-08-12 09:10:00健康度95就有很明顯的感覺了好嗎，懷疑根本快樂表