Huawei eRecovery is a very useful feature for smartphones with the Android operating system. But often users have to figure out how to exit this mode correctly and safely.
Any mobile device stores contacts, SMS and other personal data in its memory that you would hate to lose. To restore settings and data, Huawei smartphones have an eRecovery mode, which appears on the screen with the inscription EMUI.
The eRecovery function works fully when the user follows the recommendation to regularly create a backup copy for data recovery. In this case, rolling back is not a problem. But, more often than not, smartphone owners do not bother to create a backup at least once a month. And the appearance of EMUI on the screen throws them into panic.
How to enter recovery on Honor 7c?
Press and hold the “Volume +” and “Power” buttons. As soon as the screen backlight appears, release the “Power” button. After a while, the “Select Boot Mode” menu will appear, use the “Volume +” button to select and confirm the selection with the “Volume -“ button
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When Huawei enters eRecovery
Huawei smartphones can switch to eRecovery mode in the following cases:
- intentional entry for recovery;
- unintentional key presses;
- failure during the update or firmware procedure.
To restore data, you usually enter the eRecovery menu by simultaneously pressing and holding the volume and power keys for several seconds when the smartphone is turned off.
In most models, the volume button must be held in the increase position when turned on, but it happens the other way around. After the recovery menu appears, you must also move between menu items using the volume button.
Unintentional keystrokes often occur due to the user not knowing how to log into eRecovery. But it also happens that when assembling a Huawei smartphone, mistakes are made and one of the keys becomes jammed. In this case, the EMUI mode may appear randomly, although manufacturers have specifically made it difficult to enter using a combination of presses.
A failure to update the software or firmware of a Huawei smartphone can also cause it to enter eRecovery mode, since the device needs to somehow complete the process.
Backup problems
Main problems with backup:
Reduces the length of time, called the backup window, within which a backup operation must be completed.
An ever-increasing number of application programming interfaces (APIs) that backup applications must support.
Inability to back up files that are open and actively used by applications.
Time spent on backup
Historically, server applications were only run during business hours. Backup operations were accordingly performed during non-working hours, i.e. at night, when applications can be stopped without affecting users. Once the application is stopped, the server can be disconnected from the network and the data can be backed up. There are two problems with this approach.
Significant increases in data volume make it difficult to complete the backup within the allotted time period. Oddly enough, recording to magnetic tape is very inefficient in terms of both machine hours and staff time. You need to find the tape, insert it into the drive and rewind it to the desired position. Once the position is found, writing data to tape will be much slower than writing to a hard drive. Hard drive interfaces support write speeds of orders of magnitude greater than 80 MB/s, and the fastest tape drives support a maximum transfer speed of 30 MB/s. To manage multiple drives, robotic libraries can be used, which are quite expensive and help reduce the time spent just searching and loading a tape. Such libraries are not able to increase the speed of reading data or writing it to tape.
The second problem is that more and more applications, and the data they create, manage and modify, are seen as important, if not critical, to a company's survival in a competitive environment. This means that the time during which you can take the server offline for backup is reduced.
Increasing number of application programming interfaces
Consumers are using more and more enterprise applications that are rarely, if ever, allowed to be stopped for backup. For this reason, every application provider provides an API for backing up and restoring application data files. Although the creation of such APIs sounds very optimistic, in reality the situation has only gotten worse.
Consumers typically use multiple applications, and it is very common to have multiple versions of the same application. Each backup vendor must write code that uses the API provided for each enterprise application. Because many application vendors license backup agents separately for different applications, the process of keeping track of software licenses and their costs can be confusing for an IT manager. Moreover, consideration must be given to the deployment of infrastructure, training of personnel, and strict adherence to instructions necessary for effective backup.
Open files problem
Another problem with performing backups is that the process takes a significant amount of time. If your tape drive supports 10 GB/min recording, it will take 10 minutes to back up a 100 GB drive. During these 10 minutes, applications will access the disk and make changes to the data recorded on the disk. There are three approaches to ensuring the integrity of a backup.
Prevent applications from accessing the disk during the backup process. Blocking concurrent user access to a disk during backup was quite common in the early days of personal computers, when 24x7 operation was not practiced. Backups were performed during off-peak periods, such as at night. Now this approach is not always possible, and there are a number of reasons for this.
Requirements for system performance often specify 24x7 operation, so there is simply no more suitable time for backup.
The amount of data that needs to be backed up increases, as does the amount of time that data is actively used, so the backup window is not always long enough to complete the copy operation.
Backs up data while applications access the disk, skipping open files. The problem is that only really important applications are running during the backup process, so this approach may not make it to the backup copy.
Separate I/O initiated by the backup application from I/O initiated by other applications. Backup software vendors have partially modeled a number of operating system functions. In particular, their programs depend on the ability to distinguish between I/O sources. However, this method may well be useless. Backup programs usually use undocumented features of the operating system to some extent, which may change with the release of a new version. In addition, a fairly large amount of free disk space is required. Another option is to process each file individually or all files at once.
Source
What is Recovery Mode?
This mode allows you to reset your mobile device to its initial state, as if you had a new smartphone. When activated, all accumulated data will be deleted: applications, browser history, contacts, games, music, photos, videos and much more. Therefore, before entering recovery, you should take care to save all the necessary information and files.
Someone may wonder why use such an option if it can lead to irreversible consequences? The fact is that there are malfunctions in the operation of a mobile device that cannot be solved in any other way. Of course, resetting settings through recovery of Huawei and Honor, as well as on other smartphones with Android OS, is necessary only in the most extreme cases.
It's also worth noting that the Recovery menu on Honor and Huawei gives access to other options. For example, installing firmware, creating backups, viewing caches and much more.
Safe recovery menu items
The eRecovery menu of most Huawei phone models contains the following items:
- download latest and restore;
- factory reset;
- reboot;
- shut down
There may be others regarding clearing the cache or downloading an update from an external source, but these are the main ones.
The safest of them are the last two: reboot and shutdown.
The first menu item suggests downloading the latest backup and restoring software and data. It should only be used if archives have been created. This is a very useful feature for disciplined users.
Resetting to factory settings is a radical solution to phone problems. But in this case, all settings and personal data may be lost.
If your Huawei smartphone has entered eRecovery mode on its own and you can still navigate between menu items, the safest thing to do is to reboot or turn off the phone. After re-enabling, usually all functions are restored, while personal data, including contacts, is saved.
It's all Google Drive's fault.
In more than one case, the problem was based on Google Drive, a popular platform on which Android mobile phones are used to create a copy, including applications such as WhatsApp. Due to a specific glitch, an error message may appear on the copy, leaving us with two ways to get it working again.
Clear Google Drive cache
As a first solution, we recommend that you delete the cache of this application, in this case we will not lose any files and will only delete persistent files that may be preventing it from working properly. To accomplish this, we go to Settings > Applications > Google Drive > Storage to finally clear the cache and all data.
Check Storage
We can't rule out the possibility that your Google Drive storage space is full. We have 15 GB without having to pay anything in return and at this point we have to count all the files we upload to Google drive, Gmail emails and backups that are causing us problems.
In the Google Drive application we have a drop-down menu in which we can see how much we have available to download this error, if we have at least 2 GB or otherwise we will have to delete documents stored in the cloud for backup for correct operation and problems will not recur.
Error creating backup on Huawei
As we show in the images, this message appears without prior notice in an extended form every 7 days, as this is the default period set in EMUI. If we don't fix this and just ignore it, we'll see it again every week. To put an end to the copying problem in Huawei you just need to enter its details or go to Settings > Account > Cloud and follow the instructions that we will show you in the settings.
This error occurs because we have not reduced more space in Huawei's cloud, and therefore the storage may not be enough. This didn't happen before because WhatsApp and other apps didn't support backup here, which is even worse after the US issues if it was added.
Change settings to make a copy
At this point, we recommend disabling all options that currently include WhatsApp, Telegram and Facebook. We have to do this, especially if we have Google services, since everything will be protected by Google Drive. We will come back later and in the Cloud options we can deactivate the gallery backup, one of the largest and does not allow making copies for free space.
