diff --git a/cmds/dumpstate/dumpstate.cpp b/cmds/dumpstate/dumpstate.cpp
index 52cd831..e296eaa 100644
--- a/cmds/dumpstate/dumpstate.cpp
+++ b/cmds/dumpstate/dumpstate.cpp
@@ -1256,7 +1256,6 @@
     dump_dev_files("TRUSTY VERSION", "/sys/bus/platform/drivers/trusty", "trusty_version");
     RunCommand("UPTIME", {"uptime"});
     DumpBlockStatFiles();
-    dump_emmc_ecsd("/d/mmc0/mmc0:0001/ext_csd");
     DumpFile("MEMORY INFO", "/proc/meminfo");
     RunCommand("CPU INFO", {"top", "-b", "-n", "1", "-H", "-s", "6", "-o",
                             "pid,tid,user,pr,ni,%cpu,s,virt,res,pcy,cmd,name"});
@@ -3631,110 +3630,3 @@
     }
     return info.st_mtime;
 }
-
-void dump_emmc_ecsd(const char *ext_csd_path) {
-    // List of interesting offsets
-    struct hex {
-        char str[2];
-    };
-    static const size_t EXT_CSD_REV = 192 * sizeof(hex);
-    static const size_t EXT_PRE_EOL_INFO = 267 * sizeof(hex);
-    static const size_t EXT_DEVICE_LIFE_TIME_EST_TYP_A = 268 * sizeof(hex);
-    static const size_t EXT_DEVICE_LIFE_TIME_EST_TYP_B = 269 * sizeof(hex);
-
-    std::string buffer;
-    if (!android::base::ReadFileToString(ext_csd_path, &buffer)) {
-        return;
-    }
-
-    printf("------ %s Extended CSD ------\n", ext_csd_path);
-
-    if (buffer.length() < (EXT_CSD_REV + sizeof(hex))) {
-        printf("*** %s: truncated content %zu\n\n", ext_csd_path, buffer.length());
-        return;
-    }
-
-    int ext_csd_rev = 0;
-    std::string sub = buffer.substr(EXT_CSD_REV, sizeof(hex));
-    if (sscanf(sub.c_str(), "%2x", &ext_csd_rev) != 1) {
-        printf("*** %s: EXT_CSD_REV parse error \"%s\"\n\n", ext_csd_path, sub.c_str());
-        return;
-    }
-
-    static const char *ver_str[] = {
-        "4.0", "4.1", "4.2", "4.3", "Obsolete", "4.41", "4.5", "5.0"
-    };
-    printf("rev 1.%d (MMC %s)\n", ext_csd_rev,
-           (ext_csd_rev < (int)(sizeof(ver_str) / sizeof(ver_str[0]))) ? ver_str[ext_csd_rev]
-                                                                       : "Unknown");
-    if (ext_csd_rev < 7) {
-        printf("\n");
-        return;
-    }
-
-    if (buffer.length() < (EXT_PRE_EOL_INFO + sizeof(hex))) {
-        printf("*** %s: truncated content %zu\n\n", ext_csd_path, buffer.length());
-        return;
-    }
-
-    int ext_pre_eol_info = 0;
-    sub = buffer.substr(EXT_PRE_EOL_INFO, sizeof(hex));
-    if (sscanf(sub.c_str(), "%2x", &ext_pre_eol_info) != 1) {
-        printf("*** %s: PRE_EOL_INFO parse error \"%s\"\n\n", ext_csd_path, sub.c_str());
-        return;
-    }
-
-    static const char *eol_str[] = {
-        "Undefined",
-        "Normal",
-        "Warning (consumed 80% of reserve)",
-        "Urgent (consumed 90% of reserve)"
-    };
-    printf(
-        "PRE_EOL_INFO %d (MMC %s)\n", ext_pre_eol_info,
-        eol_str[(ext_pre_eol_info < (int)(sizeof(eol_str) / sizeof(eol_str[0]))) ? ext_pre_eol_info
-                                                                                 : 0]);
-
-    for (size_t lifetime = EXT_DEVICE_LIFE_TIME_EST_TYP_A;
-            lifetime <= EXT_DEVICE_LIFE_TIME_EST_TYP_B;
-            lifetime += sizeof(hex)) {
-        int ext_device_life_time_est;
-        static const char *est_str[] = {
-            "Undefined",
-            "0-10% of device lifetime used",
-            "10-20% of device lifetime used",
-            "20-30% of device lifetime used",
-            "30-40% of device lifetime used",
-            "40-50% of device lifetime used",
-            "50-60% of device lifetime used",
-            "60-70% of device lifetime used",
-            "70-80% of device lifetime used",
-            "80-90% of device lifetime used",
-            "90-100% of device lifetime used",
-            "Exceeded the maximum estimated device lifetime",
-        };
-
-        if (buffer.length() < (lifetime + sizeof(hex))) {
-            printf("*** %s: truncated content %zu\n", ext_csd_path, buffer.length());
-            break;
-        }
-
-        ext_device_life_time_est = 0;
-        sub = buffer.substr(lifetime, sizeof(hex));
-        if (sscanf(sub.c_str(), "%2x", &ext_device_life_time_est) != 1) {
-            printf("*** %s: DEVICE_LIFE_TIME_EST_TYP_%c parse error \"%s\"\n", ext_csd_path,
-                   (unsigned)((lifetime - EXT_DEVICE_LIFE_TIME_EST_TYP_A) / sizeof(hex)) + 'A',
-                   sub.c_str());
-            continue;
-        }
-        printf("DEVICE_LIFE_TIME_EST_TYP_%c %d (MMC %s)\n",
-               (unsigned)((lifetime - EXT_DEVICE_LIFE_TIME_EST_TYP_A) / sizeof(hex)) + 'A',
-               ext_device_life_time_est,
-               est_str[(ext_device_life_time_est < (int)(sizeof(est_str) / sizeof(est_str[0])))
-                           ? ext_device_life_time_est
-                           : 0]);
-    }
-
-    printf("\n");
-}
-
diff --git a/cmds/dumpstate/dumpstate.h b/cmds/dumpstate/dumpstate.h
index c059641..82bf821 100644
--- a/cmds/dumpstate/dumpstate.h
+++ b/cmds/dumpstate/dumpstate.h
@@ -584,9 +584,6 @@
 /** Gets the last modification time of a file, or default time if file is not found. */
 time_t get_mtime(int fd, time_t default_mtime);
 
-/* Dumps eMMC Extended CSD data. */
-void dump_emmc_ecsd(const char *ext_csd_path);
-
 /** Gets command-line arguments. */
 void format_args(int argc, const char *argv[], std::string *args);