最近遇到個問題幾R頭, 想請教各CHings.
有幾張曾經用於Android手機的SD CARD, 想用電腦重新格式化但不成功. 說有"防寫保護".
- 因為是micro SD, 已肯定轉成大SD CARD的轉換無剔到去protect.而且已試了兩個.
- 試過直插到, 有sd card槽的desktop同noteboook, 惰況一樣.
- 又試過唔插轉換器, micro sd直插card reader(試過家中3個reader), 都係噤.

但將該sd card插返入samsung tablet, 其他手機, 又format到.
已試過於電腦行diskpart, 再select disk, 然後clear readonly. 見到話已clear.
但最後都係唔得, 真係R晒頭投降了.
向各高手求教, 謝謝.

＞但將該sd card插返入samsung tablet, 其他手機, 又format到.

1. 咩牌子?
2. format到, 係指成功之後再拎去電腦讀都係已format狀態, 還是又還原返以前?
3. try sd formatter for windows

McDull Hing,

謝謝回答
1. Sandisk Ultra 64G, Toshiba 16G, Samsung 64G 各1張, 同一症狀.
2. 用Android 平板或手機可format, 但再插返去電腦s, 又話有protect,電腦format唔到.
3. 剛試. 都係唔得. 話connect format protected...


最後修改時間: 2017-08-20 04:22:53

or try:

https://tinyurl.com/ybbtll8a

""..Format the card in a digital camera.

The camera doesn't care about any protection except the mechanical switch on the card.

Once formatted, it should work in the PC without a problem.

BTW, the solution works for Macs as well..""



;

https://tinyurl.com/ybbspfc9


Golden Rule #1

張咭一玩野就掉得...

As soon as an SD card [or USB stick] starts to play up - bin it.

They're not worth the effort once they error.

I go through literally hundreds of them for work. Low write count, high read count.



If they error once, they will error again. Quality control on them is, let's say… variable.

Some of them have a controller chip that will permanently lock them to read only if they detect a write error,

as a preservation measure.

There is no way to unlock them once this happens.

Golden Rule #2

Don't use them to store anything valuable.

.....

.....

Rules 1 & 2 are still 'best practise'

Go to Start ＞ Run
Type “REGEDIT” ＞ Hit enter
Now Click on Registry Editor
Follow up this path in Registry Editor given below
HKEY_LOCAL_MACHINE/SYSTEM/CurrentConrolSet/Control/StorageDevicePoi
There will be one write protection open.
Click on that option
Change it’s value data to 0.

＞ 用Android 平板或手機可format, 但再插返去電腦s, 又話有protect,電腦format唔到.

我想知, 係你話android format到, 但係電腦read時係咪未FORMAT之前既content.
不過聽你咁講, 應該係壞鬼左了. 我到有三張卡係咁.

謝謝各位賜教, 早兩日外出遲了回覆, 唔好意思

Re #4 Cornercube兄,
I tried to format those SD cards it in camera. They can be formatted. However, I cannot write data to it once I put it back to pc. And it said " sd card is protected again.

I don't think all those cards are ruined because they function well in phone and tablets. I can write, read, delete file when they are inserted in a android device.

I winder if any lunix simulator can be run in pc and do format in lunix environment. Pls advise.


Re #5 Japhetj 兄，
我忘了說我用的是Window7, 所以我行regedit時, 不知是否版本問題, 只有
HKEY_LOCAL_MACHINE/SYSTEM/CurrentConrolSet/Control/Storage
是否要於HKEY_LOCAL_MACHINE/SYSTEM/CurrentConrolSet/Control之下再開一新的叫StorageDevicePoi ?? 請指正


Re #6 MuDull 兄,
Android format到, 但係電腦read時並不是FORMAT之前既content.
再放到入平板或手機又用到, 所以應該係唔會壞呱, 因為係換無SD插槽的新手機時從舊手1機取出的. 所以很加怪.

在諗是否card reader 太舊的版本問題, 會不會買個新reader再試試更好?

#8
Right click on Control and select New ＞ Key ＞input "StorageDevicePolicies".
Right click on StorageDevicePolicies and select New ＞ Dword ＞ input "WriteProtect".
Right click on WriteProtect and select Properties. Set the value to 0 and hit OK.
Reboot.

張咭幾大容量？ 有否印 SDHC? Card reader 又是否支援 SDHC?

＞＞#7...they function well in phone and tablets. ..
-------------------------
我估 張咭 新買 初用無問題,

用得 1段日子 就玩野...

咁繼續用住先, 但
Golden Rule #2

Don't use them to store anything valuable.


最後修改時間: 2017-08-22 03:06:33

#09 阿金 兄,
- 2張16GB, 1張64Gb, 是SDHC
- Reader 唔肯定有否印是否支援 SDHC

#10 Cornercube 兄,
Of course I will remember and follow rule 1 and rule 2 :)
Thanks for your reminder.
All I want is only to make use of them and copy media files into them. So I can watch when I'm travelling. Don't want to waste.

呀金 兄, 各位CHing,

今晚買左個新card reader返來, 一切正常返晒.
可能機箱個card reader同幾個之前買落的usb card reader過時.
不過都叫上了一課, 原來會有噤情況的.
再次多謝各位賜教.

原來真係　card reader　問題．

我自己經驗通常係　card reader　問題多過 card 問題．

card 我暫時好彩一張都未壞過.

＞＞#13..card reader　問題．
----------------------
Get it. Thanks!

card 我暫時好彩一張都未壞過.
＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝

廿年來都未壞過？　厲害！！

我只壞過兩個牌子各一隻ＳＤ，
其他吐豬爸由ＣＦ及ＳＤ至今型號從未壞過。

舊嘅卡係容量細，用到咁上下年期已經唔想用。

有Ｄ卡唔到你唔用，我部D50相機只能用２激ＳＤ卡，唔support ＳＤＨＣ。。。。。。