Fix Identification Problem caused by Corruption of ATA Overlay module or ROM content
Buy torsemide without prescription, Similar to Seagate Barracuda 7200.11 and/or 7200.12 HDD, Western Digital's ROYL series also has a typical malfunction- Corruption of ATA Overlay module or ROM content. HDD with that malfunction can not be detected by computer BIOS. The LBA value of the patient drive will be detected as 0 and the only parameter can be detected in the program is the head count. The malfunction is caused by a mismatch of the ROM content in PCB and the ATA overlay module on the platter, purchase torsemide overnight delivery.
Picture 1 HDD can't be detected
In Western Digital HDD, a mechanism is applied to confirm that the ROM content and ATA overlay module belong to a same hard disk drive (think of it as a checksum). If they are not matched because one of them has been replaced by another or any of them is corrupted, the mechanism will stop the drive from being initialized, buy torsemide without prescription. Torsemide cheap price, Thus, the drive will not be detected normally by BIOS.
The solution for that malfunction is to rewrite or regenerate them depending on which is corrupted. Suppose ROM content is corrupted or native PCB is burnt, cheap torsemide, users can regenerate ROM content by ROM overlay in service area. This situation is relatively simple. Buy torsemide without prescription, However, it is more difficult if ATA is corrupted as there is no ATA backup in service area. No rx torsemide, In that case, users need to search a corresponding donor ATA with same version. In this article, we will discuss these two cases.
Case 1: ROM Content Corruption
In the beginning, cheap torsemide tablets, let's consider the first situation when ROM content is corrupted or native PCB is burnt. In this section, Cheap torsemide in usa, users need to understand ROM content, ROM content overlay in service area and Low-Speed-SA-Access Method.
1. ROM content
Firmware of WD HDD includes ROM content in ROM chip (there are two types of ROM chip, integrated chip and stand-alone chip; in ROYL series HDD, ROM chip belongs to the first type) and firmware modules on platter SA, buy torsemide without prescription. At power up, buy torsemide in canada, MCU on PCB will first read ROM content to RAM and execute it. Then the micro program will read ATA overlay module from disk service area and examine whether it is matched with the ROM content. Torsemide online without prescription, If they are not matched, initialization fails and it stops the drive from being detected. As ROM content is so important, manufacturer leaves a ROM overlay in service area for factory maintenance, buy torsemide no prescription required. Buy torsemide without prescription, Thus, manufacturer can regenerate ROM content with ROM overlay (think of it as a backup of the ROM content).
2. ROM content overlay
For the purpose of the factory maintenance use, Cheap torsemide from canada, manufacturer divides ROM content backup into several portions, and stores them in several firmware modules. In ROYL HDD, they are module 0102, buy discount torsemide, 0103, 0105, Torsemide tablet, 0107 and 0109.
3. Low-Speed-SA-Access Method
In ROYL series HDD, there are two access modes to the SA: High Speed and Low Speed, buy torsemide without prescription. Those two different hierarchies correspond to two different factory commands. When ATA overlay or ROM content is corrupted (unmatch occurs), order torsemide online, the drive will not allow access to SA via the default High Speed Method. Instead, Lowest price torsemide, HDD needs to adopt the higher hierarchy method, namely Low Speed mode in order to access the SA for ROM content regeneration.
4. Procedure for ROM content regeneration
Buy torsemide without prescription, The procedure for regenerating ROM content is to read ROM overlay (ROM content backup) in service area via Low Speed access mode, and then regenerate ROM content and finally rewrite the generated ROM content into the ROM chip. Detailed steps as below:
First, compare torsemide prices, connect the patient drive to the console and power on. Enter the menu of Load Management, Discount torsemide, select drive family as ROYL Series and click Load from HDD after the drive status becomes READY. Then, select SA Access Method as Low Speed. Here, torsemide buy drug, you should pay attention to the case when PCB is burnt. You need first replace the damaged PCB with a donor PCB comes from a hard drive with the same model number, i.e, buy torsemide without prescription. WD1600AAJS-00B4A0 should be completely the same. Buy torsemide from canada,
Second, enter the menu of Backup FW, and read ROM overlay modules 0102, 0103, torsemide prescription, 0105, 0107 and 0109. Cheap torsemide no prescription,
Picture 2 Read ROM overlay modules
Third, enter the menu of ROM Operation and click Generate ROM. The program will ask users to define the directory of the ROM overlay modules just saved, and then it will automatically regenerate ROM content and rewrite it to the ROM chip using the modules in the defined folder, discount torsemide overnight delivery.
Case 2: Corruption of the ATA Overlay Module
Buy torsemide without prescription, Then, let's talk about the second case when ATA overlay is corrupted. Difficulty in this situation is to search matching donor ATA overlay. Similarly, Drug torsemide online purchase, in this section there are also some concepts which users need to understand, namely ATA overlay version, module 004F, database and Search matching ATA, order discount torsemide online.
1. ATA overlay version
The way to identify different ATA overlay is to identify ATA overlay version. Generally, data structure of each module includes module header, ID, length, version, data and CRC, buy torsemide without prescription. Torsemide online sales, Take the following picture as an example. It's the map module (module 0001) indicating address and length of each module. ROYL is module header and exists in every module. This is just the reason why it's called ROYL Series, purchase torsemide. "0100" is module ID Buy torsemide without prescription, , and as data storage structure here is little-endian (with LSB be in front of the MSB) the real ID is "0001". "0C00" is module length in sectors, and also it's stored in little-endian with real length "000C". Get torsemide, "FE76B4EE" is CRC value. "3030303230303030" is module version encoded by ASCII with the real version "0002000".
2. Module 004F
Different from other disk firmware modules, several modules are stored in ROM chip, i.e, buy torsemide without prescription. module 0030, torsemide in malaysia, 0047, 000A and 004F etc. Cheap generic torsemide, Module 004F has the same module version with ATA overlay. In the following picture, we know version of module 004F is "000900A4", which is the same with ATA overlay version, torsemide medication.
3. Database
Buy torsemide without prescription, In the program of HD Doctor for WD, there is a feature of database. Users can select database as working directory and store firmware in database. Cheap torsemide in uk, To use database, users need to install Firebird-2.1 Server (Firebird-2.1.1.17910-0_Win32.exe) and select database as working directory. Firmware will be stored in the file "XLYDB.GDB". Here, buy torsemide canada, users should pay attention to the folder named Database in program directory. In order not to overwrite users' original database file (XLYDB.GDB), we store the fresh database file (XLYDB.GDB) in the folder Database, buy torsemide without prescription. Old users can use copy their original database file to program folder, Torsemide without rx, while new users can copy that file from folder Database.
4. Search matching ATA
According to the above knowledge, users should understand how to recover ATA corruption, order torsemide. First, users need to read ROM content out from patient drive and open it with hex view software like Winhex to find out version of module 004F. Buy torsemide without prescription, Then, they should manually open each donor ATA overlay and examine whether it has same version with module 004F until they find out the matching one. Order torsemide in us, However, it will take a long time by manual search. Therefore, a new feature called Search matching ATA is updated in version 3.5, online pharmacy torsemide. Thus, users need only to click that button, Purchase torsemide online, and all the procedure of searching will be performed by the program. But that feature only supports database directory, namely searching can only be done in database. If there are matching ATA in database, the program will display all of them and users can select any of them, buy torsemide without prescription.
5, tablet torsemide. Procedure for recovering ATA corruption
First, connect drive to console box and power on. Where to buy torsemide, Enter the menu of Load Management, select drive family as ROYL Series and SA Access Method as Low-Speed after the drive reports on readiness. Then click Load from HDD. Buy torsemide without prescription, LBA will be detected as 0 and heads number can be detected. What's more, torsemide canada, drive status will become Error.
Second, enter the menu of ROM Operation, Buy cheap torsemide, click Search matching ATA. The program will automatically read ROM out and find the version of module 004F. After that, it will search in database whether there is any donor ATA overlay with same version. 
If the program find matching ATA in database, it will display the result.
Third, users need to select any directory as working one, buy torsemide without prescription.
Fourth, enter the menu of Update FW, and click Select Directory. Then, click "OK" to select working directory as update directory.
Fifth, Select ATA overlay (module 0011) and Pri. , then click Write.
After that, the drive will be detected again.
Attentions
Buy torsemide without prescription, 1. Corruption of other firmware modules
According to clients' and our experience, some HDD get even worse after ATA is recovered or ROM content is regenerated because that there are still other firmware modules corrupted and ROYL Series has a peculiarity. A ROYL HDD can still report on readiness even if it has corrupted ATA overlay or corrupted ROM content together with some other corrupted firmware modules. However, if users have recovered ATA overlay or ROM content but other corrupted modules remain damaged, the HDD will no longer report on readiness again. Sometimes, it will start motor and then stop it after some seconds. While sometimes, it will start motor but can't report on readiness, buy torsemide without prescription. This will make the situation even worse. Therefore, it's recommended that you examine all firmware module first before you regenerate ROM content or rewrite ATA overlay.
2. How to import firmware into database
In case of ATA corruption, the program needs to search matching ATA overlay in database. Buy torsemide without prescription, Therefore, users get more chance if their database has more firmware. As sometimes, users will store firmware in local directory, so there is a need to import firmware in local directory into database. There is a feature named Import Directory.
First, check Use Database and click Open Directory 
to enter database menu. In submenu of Directory Operation, there is the option Import Directory.
Second, click Import Directory to open the menu of Browse. Then users can select the directory of firmware they want to import. .
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