Lenovo A536 Hangs On Logo

In the process of flashing their phone, users may encounter a message PMT changed for the ROM it must be downloaded. In this article I will tell you what kind of error it is, why it occurs, and how to fix PMT changed for the ROM it must be downloaded during the firmware of the mobile device.

Firmware error

The essence of the PMT problem

Each smartphone or tablet uses a partition table (memory layout), with which normal operation of the operating system is carried out.

When flashing the device, special software is used that uses its own phone markup data. If this data (usually in the Scatter file) differs from the actual phone markup (PMT), then the error PMT described for me changes for the ROM it must be downloaded, and the user, trying to reflash his device, gets the problem described above.

Another reason for the occurrence of such a dysfunction is the corrupted partition table of the phone itself.

Problem identification

I’ll make a reservation right away that you will perform all the actions I offer at your own peril and risk, since undertaking the firmware of your device without having special technical knowledge is a great chance to turn your phone into a lifeless “brick”.

First, check the status of the phone and whether your software matches this unit with IMEI. If the software you use does not match the version of your phone, then look on the network for the exact version of the firmware that you need.

If the phone does not start at all, or after turning on it hangs on the logo, and trying to reflash it using the SP Flash Tool, you get the described error PMT changed for the ROM it must be downloaded. then, probably, the phone has significant problems with the partition table ( it is damaged).

It also happens that the versions of some files included in the firmware used do not correspond to the declared ones, and this can also cause the dysfunction described by me.

Fix the problem

How to fix PMT error changed for the ROM it must be downloaded

Method 1 In addition to the above search in the software network, corresponding to the version of your phone, you can select the “Firmware upgrade“Instead of”Download Only»During firmware. The firmware will download the special bootloader, but at the same time, if it differs from the telephone bootloader, the device may “die”. In most cases, this method allows you to fix the specified problem, and the phone will work without problems.

Method 2 Another option for solving the PMT changed for the ROM problem is to select the firmware, and then format the phone using the Flash Tool SP (select the Auto Format Flash option), then download the firmware (download flash) without selecting a bootloader. After completing the firmware process, you will need to fix IMEI.

Method 3 Turn off your phone and run the utility for flashing JV Flash Tool firmware. Select the “Format” submenu and click on the “Start” button. Connect the turned-off smartphone to the computer and wait until the formatting process is complete. After receiving the “Format OK” label, turn off the device. Now go to the “Download” subsection, select the scatter file and click on “Download”. Reconnect the device, and the firmware process itself will begin.

How the error correction occurs according to method 3, you can see the:

Method 4 Open JV Flash Tool, select the scatter file. Click on the “Format” submenu, select the “formal all except bootloader” option. Then format the device and try flashing it again. In some cases, this option has proven effective.

Conclusion

In most cases, the cause of the described error “PMT changed for the ROM it must be downloaded” is a mismatch between the actual markup of the phone and the markup used in the scatter file. The methods I have listed are designed to correct the problem, be careful, and if you are not a professional in this field, then entrust this matter to a specialist.

Man, I respect you unbearably! Thank you! 3 way helped, I almost threw the pipe already). Now I put back the native firmware. more well, fuck him, flashing, especially when nubyar in this thread. May the force come with you!

Thank you, revived the phone, but how to restore emei now? Lenovo A516

They are restored as follows) there are several options through various programs and through the engineering menu of the phone))) first you go along the path Settings \ About phone \ you go down to the item Communication module firmware \
if UNKNOWN is unwritten there, then everything is in order and you can go to the phone’s engineering menu (there are several options for getting there either by dialing a special code in a dialer or using such programs Mobileuncle MTK Tools and ToolHero, by the way, using the same programs you can and try to install it either registered my own name or the ones offered by the program, but always prescribe my own))) but I will describe the way to restore it through the engineering menu)) and we go into the engineer by entering the code in the dialer ## 3646633 ## then the engineer menu opens ac ross, see the top of the tab titled Telephony-Connectivity-Hardware Testing-Location-etc., we need the tab called Connectivity, swipe from right to leftSwipe is the sliding movement of a finger across the screen (turning pages)
CDS Information, a list of this item will open in it, looking for a line called Radio Information tap (click) on it and tap on the name Phone 1 the information section will open with editing mode, on top we see a line with the inscription AT we need it, tap on a line and enter English E immediately pops up a menu with the names ATEGMR = 1.7, “”, etc. Tap on the first line and enter your name between quotation marks, it should look something like this ATEGMR = 1.7, “123456789123456”, then press the SEND AT COMMAND button which is located slightly below your name, now click back and select
Phone 2 and do the same operation as with the first SIM card Phone 1 only this time we select the second line ATEGMR = 1.10, ”” also enter the second line in quotation marks and press the SEND AT COMMAND button, when sending commands successfully, approximately is AT Command Set: OK, it can probably be written on different models, but it was written like that for me, after this message we just exit the engineer by clicking on the house at the bottom of the phone screen and send our smart device to reboot in the usual standard (regular) way via the power button , wait until those efon turn then wait for some time until the phone registers the sim card (s) again after opening the dialer and type the code to check the bear # 06 # (if you do not you may need to srabotet also a challenge to push) it! a small window opens where we already see our names (numbers) and not the inscriptions incorrect Imei. This confirms that they got up normally and without errors, now everything is working, you can catch a call! Please those who will help a small article on the restoration of Imei. Till

Pavlik Moroz When I enter a command in the engineering menu, I get an error “THIS COMMAND IS NOT ALLOWEED IN USERBUILD