正如你可能知道，在希捷硬盤數(shù)據(jù)恢復(fù)診斷的第一步檢查終端輸出后，并檢查驅(qū)動器是否能夠讀?。ü碳^(qū)SA）系統(tǒng)文件。
As you may know, first step of diagnostics on Seagate drives is to check terminal output after power on and check is drive able to read system files.

But there a lot of firmware errors when you can’t access terminal – got T> string after pressing Ctrl Z. In terminal log you have last message something like:
但也有不少錯誤的固件，在希捷硬盤數(shù)據(jù)恢復(fù)時當您無法訪問終端 – 按Ctrl Z后能夠得到T>字符串信息。但是在最后終端的日志消息類似：

LED:000000CC Faddr:0026A86F

or

LED:000000EE FAddr:00358846

At this situation you should try to short read channels.
在這種情況下，你應(yīng)該試著短路讀取通道。

Where to short?
短接位置如何查找？

You need to search for differential pairs – two pair PCB traces that are going between main chip and headstack contacts. Like this:
您需要尋找這樣的走線-在主芯片和磁頭觸點之間的兩條PCB走線。 像這樣：

If there is a resistor inserted between the lines – it’s definetely read channel.
如果在線路之間插入一個電阻，它就是明確的讀出通道。

At some drives there is no resistor on both lines – so only one way to find read channel is to check both differential pair:
在某些驅(qū)動器上，兩條線上都沒有電阻-因此，找到讀取通道的唯一方法是檢查兩條線路：

Since the PCB on the drive is fixed to HDA, you should short-cicuit transitional openings on the external side of board.
由于驅(qū)動器上的PCB固定在HDA上，因此應(yīng)短路電路板上的過渡孔。

How to short?

You should to use tool with as low resistance as possible. We recommend to use pincers with holding a paperclip.
您應(yīng)使用電阻盡可能低的工具。我們建議使用帶有夾子的鉗子。

There is two shorting techniques, depends on does the drive has diskware or no.
有兩種短路技術(shù)，取決于驅(qū)動器是否裝有磁盤軟件。

First one (for drives without diskware) is short before power on, and after power on trying to reach terminal by Ctrl Z
第一個（對于不帶磁盤軟件的驅(qū)動器）在通電之前很短，并且在通電后嘗試通過Ctrl + Z到達終端。

Second one (for drives with diskware) is short after power on and second “SpinUp” message in terminal, and keep shorting until “NO HOST FIS” message appeared after power on trying to reach terminal by Ctrl Z
第二個（對于帶磁盤軟件的驅(qū)動器）在通電之后很短，并且在終端中出現(xiàn)第二個“ SpinUp”消息，并保持短按，直到嘗試通過Ctrl + Z到達終端后打開“ NO HOST FIS”消息為止

How to check is there diskware or no? Simply. If drive hasn’t diskware – with isolated heads it will give a terminal access and print output of Ctrl L command without any LED error.
如何檢查是否有磁盤軟件？只是。如果驅(qū)動器沒有磁盤軟件-具有隔離的磁頭，它將提供終端訪問權(quán)限并輸出Ctrl + L命令的輸出，而不會出現(xiàn)任何LED錯誤。

The sign of right shorting is motor stop, going to readiness state is not obligatory (in fact, after shorting only Moose family drives are going to ready state). If drive doesn’t stop the motor – it has hardware malfunction or you shorted no correct way.
正確短路的標志是電機停止，進入就緒狀態(tài)不是強制性的（實際上，在短路之后，只有Moose系列驅(qū)動器會進入就緒狀態(tài)）。如果驅(qū)動器沒有停止電動機-它有硬件故障，或者您沒有正確短路。

After that you must be able to reach T> string after pressing Ctrl Z, spin up the drive by?T>/2U command and then have access to all terminal commands (like /7X, V1, V40 etc.).
之后，您必須能夠在按Ctrl + Z后到達T>字符串，通過T> / 2U命令旋轉(zhuǎn)驅(qū)動器，然后可以訪問所有終端命令（例如/ 7X，V1，V40等）。

Summary. Why my shorting doesn’t work?
不工作的短路原因可能是：

Possible reasons of non-working shorting may be:
1) wrong points 短路位置錯誤
2) wrong moment for shorting or duration 短路時刻錯誤的或持續(xù)時間
3) wrong instrument 不正常的工具

UPD. If you have a latest 6.1.x version you can patch the?ROM and after that you will easily?catch right moment for shorting – you need just?make a shorting before utility handshaking invitation. As alternative you can short the spindle motor.
UPD。如果您擁有最新的6.1.x版本，則可以修補ROM（詳見：希捷硬盤數(shù)據(jù)恢復(fù)之解鎖固件加密的希捷硬盤一文，然后您可以輕松地抓住時機進行短路–您只需要在實用程序握手邀請之前進行短路即可（終端消息如Tech Unlock Handshake：0x7E00948B Reply：）?；蛘?，您可以使主軸電機短路。

However this hack has a limitation: it?wouldn’t work at Pharaon, Moose, Wyatt and Crocket-like drives. In this case you will see an error “Code segment not found” in utility log.
但是，這種破解有一個局限性：在Pharaon，Moose，Wyatt和類似Crocket的驅(qū)動器中無法使用。在這種情況下，您會在實用程序日志中看到錯誤“找不到代碼段”。附上常見希捷硬盤短接點。

轉(zhuǎn)載請注明：成都千喜數(shù)據(jù)恢復(fù)中心 » PC-3000 for HDD. 在哪里以及如何短接希捷F3硬盤以便進行數(shù)據(jù)恢復(fù)工作？