compact format and small plate, created in United Kingdomwith the purpose of bringing technology to all people, its use is intended mainly for develop informatics in schoolsalthough it can also be used for domestic use.
Now, despite its innovative designthis hardware not without problemswhich is why you must be attentive and detect the origin of these and thus have a clearer picture for avoid major technical setbacks.
In the following article, you will learn the reasons why your Raspberry Pi won’t bootin the same way you will see what is eeprom and what is it for you will learn to boot your Raspberry Pi alternativelyand how repair eeprom to have a normal boot.
What are the main causes why my Raspberry Pi does not boot normally?
There are several problems for which your Raspberry could not boot in the best way, These are details that will vary and that will affect its proper functioning, which is why it is essential to identify them. and take corrective action as necessary. In this sense, you must know in detail each of these causes, to have an accurate diagnosis and know what to do if this type of problem can occur.
The main causes for which the Raspberry Pi does not boot are:
LED problems
The Raspberry is composed of several LEDs: the red (PWR), the green (ACT)Y three ethernet related lights. When everything is working correctly, the ACTs will blink indicating that there is SD card activity, while the PWR light will blink when the power drops to 4.65v. For this reason, you must be aware that there is a synchronization between these two lightsso that everything is in correct order.
Now, if when booting from an SD card there is regular flickering, then you are in the presence of one of these problems:
- 3 flashes: Elf is missing.
- 4 flashes: Elf equipment damaged or card inserted incorrectly.
- 7 flashes: img not found.
- 8 flashes: SDRAM has not been recognized or found.
wiring problems
If they exist power problemsthe raspberry will not be able to boot under any circumstances, the main cause of this is because the PSU or power supply you have is not stable enough for the SD card to work as indicated. That is why you must make sure that the power supply you are going to use meets the requirements demanded by your Raspberry Pias well as verify that the micro USB that has the power supply is really adequate and supports the load that will be required.
Problems with the operation of the micro SD card
For your Raspberry Pi to boot in the best way, must have a good micro SD cardsince if there are problems with this element or when it is damaged, the entire system simply it will not work.
Well, the best way to check that the card is in good condition, is to perform a test through a computer and format it, If this procedure fails or cannot be executed, the card is totally damaged and cannot be used in your Raspberry Pi. It is important to take into account in the event that you want to remove the micro SD, turn off the device before removing it, since otherwise, there is a risk of causing irreparable failures.
incompatible operating system
If you do not have an operating system on the Raspberry Pi it will not be able to boot, in this sense, those like are the most usedFor this reason, it is recommended to check carefully and in detail if the micro SD card that you will use is not empty. Now, if you have little time to find the software that best suits you, It is recommended that you use Raspbian Lite, or failing that, the NOOBS operating system if it is for the first time that you will use your device.
Corrupt files on SD card
It may be the case that your Raspberry can’t boot due to file corruptionTherefore, it is advisable to insert the micro SD into a computer with a Linux operating system, in order to copy all those files that are still readable. Next, you must install the operating system for Raspberry Pi that you want, on the new or formatted micro SD card, and transfer the aforementioned files and use them again on the Raspberry.
What is the EEPROM of my Raspberry Pi miniature computer and what is it for?
It is a memory that can be programmed, erased and reprogrammed, all electricallyit has a limit number as far as writes are concerned, so it is important to make an exact calculation of the times that it is going to be written to, to extend its useful life.
this memory stores bits via semiconductorsIn addition, it does not need moving parts for its operation, maintaining its state thanks to continuous energy cycles. The EEPROM also works for flash memory storage on SSD drives, allowing it to be programmed between 100 thousand and 1 million times approximately.
Learn step by step how to boot the Raspberry Pi in an alternative way to be able to use it without problem
As you have been observing in previous points, to boot the Raspberry Pi it is necessary to have a micro SD card programmed so that the device works correctly, and thus offers all its benefits, but this is not the only way to achieve this process. And it is that thanks to a USB memory, you can achieve this task, as long as you follow the corresponding steps, applying all the suggestions required for this purpose.
Learn how to apply this alternative way and use it without problems:
From a USB on the PXE network
to get started It is necessary to take into account that booting the Raspberry from a USB memory it makes booting slower, however, it is a viable option and an item to consider in case your micro SD memory may be damaged or have some type of problem.
The steps to boot your Raspberry from a USB on the PXE network are:
- Of start, boots the Raspberry in the conventional way, from the micro SD card, and check if everything is fully updated.
- next, edit a fileand install a firmware that will allow booting from USBto do this run the following: sudo nano/ etc/ default/ rpi-eeprom-update.
- Automatically The text editor will open, here you must change the FIRMWARE_RELEASE_STATUS, going from <
> to < >. - After you make the modification, press the keys “Ctrl+X”, to save everything done.
- Executed all this process, you must install a bootloaderwhich is the tool that allows boot the Raspberry Pi from other devicesby running the following command: sudo rpi-eeprom-update-da.
- Reboot your Raspberry so that the changes can be implemented appropriately, in this sense, and once the computer has restarted, use this command vcgencmd bootloade_version and so you can verify Firmware.
We teach you how to Repair the EEPROM of your Raspberry Pi to start it normally
It can happen that the Eeprom memory becomes corrupted and causes boot problems on the Raspberry Pi, it is also important to highlight that for many experts it is very difficult for this to happen, however, this is a topic that can be debated. Now, to carry out this process, you need a micro SD card and format it with FAT modeall this in order to generate a large capacity for the card.
To repair the Eeprom of your Raspberry and thus allow it to boot normally you must do the following:
- Download the latest bootloader via this address: https://forums.raspberrypi.com/viewtopic.php?f=117&t=246027.
- then you must extract the Zip of the download on the empty micro SD cardpreviously formatted in the mode FAT.
- insert the card in you Raspberry Pi.
- plug it in to the power supply until you notice that the Green LED flashes.
- Disconnect it and put the micro SD back with the given operating system.
- Thus your Raspberry Pi will boot normally.
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