Samsung GALAXY Tab A (SM-P355M) - ECO - P355MUBU1CRE1 firmware

Samsung GALAXY Tab A firmware P355MUBU1CRE1 is the Android 7.1.1 build for the Samsung GALAXY Tab A (model SM-P355M), released by Samsung for Ecuador (ECO). It was built on 17 May 2018, carries the 2017-08-01 Android security patch, has changelist 12366605. The package combines system build P355MUBU1CRE1 (AP/PDA) with CSC build P355MECO1CRE1 for the ECO region code. The download is 1.6 GB and has MD5 checksum 8ff6a732a847557fd954a3c518d32881, so you can verify the file after downloading. SamMobile added this file to the firmware archive on 8 August 2018.

Country
Model SM-P355M
Product Code ECO
Security Patch 2017-08-01
OS Version Android 7.1.1
PDA P355MUBU1CRE1
CSC P355MECO1CRE1
Build Date 2018-05-17
Changelist 12366605
File size 1.6 GB (1,764,176,380 bytes)
MD5 8ff6a732a847557fd954a3c518d32881

How to flash P355MUBU1CRE1 on the Samsung GALAXY Tab A (SM-P355M)

We recommend updating through Samsung's own tools: over-the-air (Settings › Software update) or Samsung Smart Switch on a PC. Flash the full firmware with Odin only when you are sure about the risks. A wrong region or a failed flash can brick the device, and SamMobile is not responsible for any damage.

  1. Download the firmware package above and extract the ZIP. It contains the AP (PDA), BL, CP and CSC files, plus a HOME_CSC file.
  2. Download and extract Odin on a Windows PC, and install the Samsung USB drivers if the PC does not detect the phone.
  3. Switch the device off and boot it into Download mode (usually Volume Up + Volume Down while connecting the USB cable, or Volume Down + Bixby + Power on older models).
  4. Open Odin. The ID:COM box turns blue when the device is connected.
  5. Load the files in their slots: BL, AP, CP and CSC. Use HOME_CSC to keep your apps and data, CSC to wipe the device.
  6. Leave Re-Partition unticked and click Start. The device reboots when Odin shows PASS. The first boot after a flash can take a few minutes.

Step-by-step PDFs: 5-file firmware and 1-file firmware.

What the build numbers mean

PDA / AP (P355MUBU1CRE1) is the Android system build; its last three characters encode the year, month and revision. CSC (P355MECO1CRE1) is the region and carrier configuration, and CP is the modem firmware. The product code ECO identifies the region or carrier this package was made for (Ecuador); our list of Samsung CSC codes maps every code to its country and carrier. Flashing a package for a different product code changes carrier features and can be refused by the bootloader, so pick the one that matches the CSC shown under Settings › About phone › Software information.